Commit Graph

392 Commits

Author SHA1 Message Date
Pepijn 1e9a6d044d Merge remote-tracking branch 'origin/feat/language-annotation-pipeline' into feat/smolvla-on-steerable
# Conflicts:
#	src/lerobot/datasets/__init__.py
#	src/lerobot/policies/__init__.py
#	src/lerobot/policies/factory.py
#	src/lerobot/processor/render_messages_processor.py
#	uv.lock
2026-05-25 16:56:22 +02:00
Pepijn c37b1fc7d0 Merge origin/feat/language-annotation-pipeline (8 fix(annotate) commits + vocabulary phase) 2026-05-25 15:47:25 +02:00
Pepijn 9020635b14 Merge branch 'main' into feat/language-annotation-pipeline
Resolves conflicts from 32 commits on main:

* docs/source/_toctree.yml — keep both new toc entries
  (annotation_pipeline + video_encoding_parameters).
* docs/source/language_and_recipes.mdx — adopt main's section
  ordering (Layer 2 before "Temporal semantics") and float32
  timestamp dtype to match the codebase.
* src/lerobot/configs/__init__.py — keep both export sets
  (recipe + video encoder).
* src/lerobot/datasets/dataset_metadata.py — drop redundant lazy
  imports (top-level imports cover both LANGUAGE_COLUMNS and
  DEFAULT_TOOLS); adopt main's @tools.setter for info.json
  write-back.
* src/lerobot/datasets/feature_utils.py — call the real
  validate_feature_language() instead of returning "".
* src/lerobot/datasets/language.py — float32 timestamps to match
  pa.float32() used in video_utils.py and the rest of the codebase.
* src/lerobot/datasets/language_render.py — adopt main's
  unwrap_scalar() helper (drops two hand-rolled .item()/list
  unwrappers); float32 in docstring.
* src/lerobot/processor/render_messages_processor.py — drop
  PR-local _scalar() helper, use shared unwrap_scalar().
* tests/datasets/test_language.py — adopt main's new float32 dtype
  + validate_feature_language warning tests.
* tests/datasets/test_dataset_metadata.py — adopt main's new
  tools.setter persist/clear tests.
* uv.lock — regenerated cleanly from main's resolver.

90 of 92 touched tests pass. Two pre-existing test failures
(test_module1_plan_memory_subtask_smoke,
test_module2_mid_episode_emits_paired_interjection_and_speech in
tests/annotations/test_modules.py) are unrelated to this merge —
that test file doesn't exist on main, so the failures originate on
the branch and are addressed by the 8 newer fix(annotate) commits
already on origin that will land in a follow-up.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-25 15:46:32 +02:00
Pepijn 1ff10b935c Merge branch 'feat/language-annotation-pipeline' into feat/smolvla-on-steerable
Resolves conflicts from 66 commits on the base branch:

* pyproject.toml — keep base's transformers>=5.4.0,<5.6.0; add the
  sentencepiece-dep entry pi052 (FAST action tokenizer) needs.
* policies/__init__.py — keep pi052 export; drop the
  RewardClassifierConfig export that base removed.
* policies/factory.py — docstring list resolution (keep pi052; drop
  reward_classifier, removed by base).
* annotations/steerable_pipeline/executor.py — adopt base's renamed
  _ensure_annotation_metadata_in_info (it already advertises the say
  tool); drop pi052's older _ensure_tools_in_info call.
* configs/train.py — keep pi052's vqa_target_fraction; adopt base's
  SampleWeightingConfig (legacy RA-BC inline params already covered
  by the migration shim base added).
* scripts/lerobot_train.py — merge pi052's per-policy processor
  rebuild + dataset_repo_id pass-through with base's active_cfg /
  is_reward_model_training tightening, and re-route vqa-weighted
  sampler to active_cfg.drop_n_last_frames.
* datasets/language_render.py — adopt base's _select_one + timestamp
  tolerance (drops pi052's stale _select_latest / per-style sort_key).
* tests — adopt base's parametrized per-camera blend + tolerance
  test; drop pi052 tests that overlap with base's tighter rewrites;
  keep pi052's flow-only / VQA-blend coverage; add a
  test_canonical_recipe_loads check on subtask_mem_vqa_speech.yaml.
* policies/pi052/processor_pi052.py — import RenderMessagesStep
  directly from render_messages_processor (base intentionally
  dropped it from lerobot.processor's re-exports).
* uv.lock — regenerated cleanly from base + pi052's pocket-tts /
  beartype.

All 67 touched tests pass (30 pi052 + 37 recipe / language-render /
pipeline / render-messages).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-25 14:47:09 +02:00
Pepijn a088c10c80 examples(port_datasets): SLURM+datatrove RoboCasa composite_seen build
Parallel variant of build_robocasa_composite_seen.py modeled after the
existing slurm_port_shards.py / slurm_aggregate_shards.py pattern.

Two-phase datatrove pipeline:
  * Phase 1 DOWNLOAD: tasks=16 (one per RoboCasa composite_seen task),
    each worker downloads its assigned tar via RoboCasa's own
    download_datasets helper. Network-bound, idempotent.
  * Phase 2 AGGREGATE: tasks=1, single worker calls aggregate_datasets
    over the 16 extracted directories. Submitted with depends=phase1 so
    SLURM only releases it once all 16 downloads succeed.

Reuses the COMPOSITE_SEEN_TASKS list and per-task download/resolve
helpers from the single-machine script via aliased imports — single
source of truth for 'what does it mean to download a composite_seen
task'.

Local (--slurm 0) mode runs the two phases sequentially in-process for
debugging on a workstation.

Usage on SLURM:
    uv run python examples/port_datasets/slurm_build_robocasa_composite_seen.py \
        --output-dir=/scratch/${USER}/robocasa_composite_seen \
        --hub-repo-id=${HF_USER}/robocasa_composite_seen \
        --logs-dir=/scratch/${USER}/logs/robocasa \
        --partition=cpu --push-to-hub

Prereq: uv sync --extra annotations  (pulls datatrove)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-25 14:10:05 +02:00
pepijn 471b2b1b1d fix(annotate): bump same-frame subtasks onto distinct frames
If two consecutive VLM-emitted subtask spans have ``start`` timestamps
that round to the same source frame after ``snap_to_frame`` (e.g. on
short episodes the VLM sometimes nominates two ~adjacent action
boundaries within one 30 Hz step), the writer emits two
``style=subtask`` rows at the identical persistent timestamp. The
training-time renderer's default binding
``subtask: active_at(t, style=subtask)`` then raises:

    ValueError: Ambiguous resolver for style='subtask';
                add role=..., tool_name=..., or camera=... to disambiguate.

… and the whole training run dies on the first batch.

Observed concretely on ``pepijn223/super_poulain_vocab2`` (job
22159979): episodes 3 and 30 each had two subtask rows at the same
timestamp (``release yellow cube`` + ``retract arm`` snapping to the
same frame).

Add ``_dedupe_starts_to_distinct_frames`` to walk the cleaned span list
and, whenever a snapped start collides with one already used, push the
later span onto the next free frame timestamp. Both subtasks survive
on distinct timestamps; the renderer can now disambiguate. If the
episode genuinely has no later free frame (extremely unlikely — would
require a same-timestamp collision on the very last frame of the
episode), the later span is dropped with a warning rather than left
to poison the render.

New test ``test_plan_module_bumps_collocated_subtasks_to_distinct_frames``
locks in the contract; full vocabulary suite is 14/14 green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-23 19:31:44 +00:00
pepijn a15e16c072 fix(annotate): replace fuzzy subtask snapping with strict match + one-shot retry
The Jaccard-overlap snap was warping VLM output into wrong canonical
labels — e.g. an off-vocab "consult the wizard" span would silently
become "grasp blue cube" if that scored highest. Even with a higher
floor the operator can't tell which subtasks were paraphrases vs
genuine mislabels in the resulting dataset.

Replace with strict exact-match validation + a single targeted retry:

  1. Generate subtasks as before.
  2. If any returned subtask's normalised form (lowercased, articles
     stripped, whitespace collapsed) isn't in the canonical vocab,
     fire one retry call naming the offending strings and re-sending
     the full canonical list. The retry prompt requires byte-identical
     output from the vocab.
  3. After the retry, validate again. Spans still off-vocab are
     dropped — no fuzzy snapping ever produces a different canonical
     label than the VLM actually emitted.
  4. If every span ends up off-vocab even after the retry, warn loudly
     so the operator extends ``meta/canonical_vocabulary.json`` to
     cover the missing phase. The episode is left with empty subtasks
     rather than silently fabricated ones — visibility > sweep-under-
     the-rug.

Promote ``_NORMALIZE_STRIP_TOKENS`` to a class constant and split the
normalisation helper out so the retry-validation and the final
canonicalisation share one source of truth.

Tests:
  - test_plan_module_accepts_article_only_difference: "grasp the blue
    cube" still maps to canonical "grasp blue cube" (article-tolerant).
  - test_plan_module_retries_when_subtask_off_vocab: paraphrase
    triggers the retry which the VLM corrects in pass 2.
  - test_plan_module_drops_off_vocab_subtask_after_retry: VLM that
    refuses to correct → bad span dropped, in-vocab span kept.
  - test_plan_module_empty_when_all_off_vocab_after_retry: every
    span off-vocab → episode left empty (no warping).
All 13 vocabulary tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-23 09:57:27 +00:00
pepijn 336af85c09 fix(annotate): never leave an episode with zero canonical subtasks
When the canonical vocabulary is enabled and the VLM produces spans
that don't overlap any canonical label, the previous Jaccard-floor
(0.5) dropped them and the episode came out with no subtasks at all
— invisible to the downstream policy. Observed on
``pepijn223/super_poulain_vocab``: some episodes had empty subtask
columns because every VLM-emitted phrase scored below 0.5 against
the discovered vocabulary.

Two-pass canonicalisation:

  - First pass keeps the Jaccard floor (lowered from 0.5 → 0.25, to
    let mild paraphrases through) and drops everything below.
  - If that first pass leaves the episode with **zero** subtasks,
    fall back to a second pass that always snaps each VLM span to
    its nearest canonical label by Jaccard (no floor). The episode
    ends up with subtasks even when the vocabulary missed a phase
    — a slightly-wrong canonical label is still closer to the right
    motion than nothing at all.
  - Log loudly when the fallback fires so the operator can spot
    coverage gaps in ``meta/canonical_vocabulary.json``.
  - Log a per-episode count at INFO when some (but not all) spans
    were dropped so it's visible without spamming the run output.

Promote the Jaccard floor + ignore-tokens to class constants so
they're a single edit point. Add ``force=True`` parameter to
``_canonicalize_subtask`` for the no-floor fallback path.

New test ``test_plan_module_snaps_when_all_off_vocab`` covers the
fallback; existing ``test_plan_module_drops_off_vocab_subtask`` is
adjusted to keep at least one in-vocab span so the floor path can
still fire and is exercised. All 12 vocabulary tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-22 12:44:03 +00:00
pepijn 86a7edc590 feat(annotate): phase 0 — derive canonical vocabulary from sample episodes
The pipeline previously emitted near-unique subtask + memory phrasings
per episode (free-form LLM rephrasing). On the downstream low-level
policy that collapses the action expert's conditioning to noise: every
episode pairs a different paraphrase with similar motions, so the
expert learns a flat scene-prior that ignores the subtask string —
then at inference the high-level head invents *yet another* paraphrase
and the expert produces tiny "uncertain hover" chunks.

Add a vocabulary-discovery phase (phase 0) that runs once per dataset:

  - watches the first ``vocabulary.sample_episodes`` (default 3)
    episode videos as one Qwen-VL prompt,
  - asks the VLM to derive ~``n_subtask_target`` canonical imperative
    subtask labels and ~``n_memory_target`` first-person past-tense
    memory milestones that recur across the demos,
  - persists them to ``meta/canonical_vocabulary.json`` (human-
    inspectable, hand-editable), and
  - wires the resulting ``Vocabulary`` into the ``plan`` module so
    every per-episode subtask + memory call is constrained to those
    exact strings (both as prompt-side instructions *and* post-VLM
    validation: paraphrases snap to the closest canonical entry via
    token-set overlap; below a 0.5 Jaccard floor the subtask is
    dropped rather than warped into something semantically wrong).

Operator workflow:

  - first run discovers the vocabulary, writes the JSON, and runs
    the ``plan`` module against it,
  - subsequent runs reuse the on-disk file (``reuse_existing=True``
    default) so hand-edits stick,
  - set ``--vocabulary.enabled=False`` to fall back to free-form
    generation (the original behaviour).

The discovery prompt forbids gerunds / third-person / adverbs and
caps the lists to the requested counts, matching the Hi-Robot /
π0.6-MEM convention of small per-environment vocabularies. The
``plan`` module's subtask + memory prompts grow a conditional
``{vocabulary_block}`` slot rendered only when a vocabulary is
present; without one the templates collapse to their previous
free-form form.

Tests: 11 new unit tests under tests/annotations/test_vocabulary.py
cover the on-disk round-trip, discovery against the fixture dataset,
``reuse_existing`` short-circuit, paraphrase canonicalisation, off-
vocab subtask dropping, and the no-vocabulary pass-through path.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-22 11:40:05 +00:00
Haoming Song b74a551d38 fix(pi0, pi05): stabilize torch.compile and expand test coverage (#3610)
* chore(gr00t): sync with #3606 for fixing gr00t config crash

* fix(pi0&pi05): fix graph break caused by deepcopy of past_key_values in sample_actions

* fix(pi0&pi05): fix frequent recompile caused by compute_layer_complete

* feat(test): add compile test and benchamrk for pi0 and pi05

* feat(test): add comprehensive testing for pi0 and pi05. Including processor, forward, sample action, etc.
2026-05-22 10:29:34 +02:00
Pepijn 5bb2da4da6 fix(pi052): VQA target format = "label <loc><loc>" not "<loc><loc> label"
The trained model collapsed to spewing 40+ <loc> tokens for *every*
prompt — subtask, memory, anything — because VQA targets were supervised
to *start* with <loc>. With ~25% of all text samples beginning with a
<loc> token, the LM head learned "Assistant: → <loc>" as a strong
attractor; once one loc is emitted, autoregression chains the rest.

Flip the format so every text target — subtask, memory, speech, AND VQA
— starts with a regular word. The model still learns the <loc>
vocabulary for the spatial portion of the answer, but loc can no
longer be the first generation step out of a clean prompt.

Examples:
  point  : "green box <loc0162><loc0759>"
  bbox   : "cube <loc0082>…<loc0409>"
  multi  : "blue <locs> ; yellow <locs>"

The runtime parser (parse_loc_answer) strips loc tokens and uses the
remainder as label, so it's order-tolerant and works under either
format. Old loc-first checkpoints still parse cleanly at inference;
new training will use label-first.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 18:56:48 +02:00
Pepijn 34269a5d78 fix(pi052): register PaliGemma <loc> tokens so they tokenize as single ids
THE bug behind the <loc>-salad. PaliGemma's vocab reserves ids
[256000, 257023] for <locDDDD> detection / pointing tokens, but the
stock AutoTokenizer does NOT match them on raw text — it BPE-splits
<loc0162> into SEVEN pieces (<, loc, 0, 1, 6, 2, >). So a VQA target
like "<loc0162><loc0759> green box<eos>" tokenized to 16 pieces, not
5, and training the LM head supervised those generic BPE pieces
instead of one detection-vocab id. The piece logits got pumped up
across ~25% of supervised positions; at inference they dominated
every turn — even subtask prompts produced <loc>-salad followed by
the actual answer.

Register the 1024 <locDDDD> tokens via tokenizer.add_tokens once on
load, in every path the policy uses: PI052TextTokenizerStep (training
encode), _build_text_batch_pi052 (runtime encode), and
select_message's default tokenizer (runtime decode). Verified
empirically with the real PaliGemma tokenizer: VQA target now
tokenizes to 5 ids matching the loc-vocab range (256162, 256759, ...)
with correct offset_mapping.

This unlocks PaliGemma's actual detection prior; <loc>-salad cannot
recur because each <locDDDD> is a single class on the LM head, not a
character sequence the head accidentally learns to extend.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 11:41:41 +02:00
Pepijn 75507491bf fix(pi052): VQA <loc> conversion treats coords as 0-1000 normalized
Confirmed empirically on the published dataset: VQA bbox/keypoint
coordinates are Qwen2.5-VL's 0–1000 normalized grounding output, NOT
pixels. Scanning 8207 samples showed x and y both spanning 0..1000
with ~30% of values exceeding the camera's pixel dimensions (which is
impossible if they were pixels).

_vqa_answer_to_loc was dividing by the observation image's H/W, so
e.g. point [742, 158] on a 640x480 wrist cam clamped x to <loc1023>
(the far-right edge) instead of mapping to <loc0760> (~74% across).
Fix: divide by 1000 — the actual Qwen scale. The conversion is now
camera-resolution-independent, so _camera_image_shapes and the
image_shapes plumbing through __call__ / _encode_messages /
_messages_vqa_to_loc are dropped. Tests updated to the new signature
and the 0–1000 round-trip.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 23:21:28 +02:00
Pepijn b7317b6c29 test(pi052): round-trip coverage for VQA <loc> conversion
Pins JSON pixel coords -> PaliGemma <loc> -> runtime parse back: the
conversion preserves coordinate order (JSON x-first, <loc> y-first) and
per-axis normalization, losing only <loc>-grid quantization.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 22:24:24 +02:00
Pepijn c026aed8f8 feat(pi052): train VQA spatial answers in PaliGemma <loc> format
Spatial VQA answers (bbox / keypoint) were trained as pixel-coordinate
JSON, which fights PaliGemma's detection prior and leaks <loc>-token
salad at inference. Convert them to PaliGemma's native <locNNNN>
vocabulary instead so the LM head reuses that prior.

Training side (text_processor_pi052.py): a target turn whose content
parses as a bbox/keypoint answer is rewritten to <loc> text, using the
camera frame's native (H, W) from the observation and the preceding
image block. Non-spatial answers, subtask/memory targets and SmolVLA2
keep their JSON form — the dataset stays backbone-agnostic.

Runtime side (smolvla2/inference/vqa.py): parse_vqa_answer detects
<loc> answers (2 locs -> keypoint, 4 -> bbox), returning normalized
[0,1] coords with a normalized flag; draw_vqa_overlay denormalizes
against the chosen camera frame's pixel size.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 20:23:46 +02:00
pepijn e425dfd624 fix(processor): fallback to task message when recipe misses
Keep action-only samples trainable by rendering the task as a low-level user message when no recipe branch matches.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-19 15:32:09 +00:00
Pepijn 15f79b5e5e fix(pi052): supervise an EOS token at the end of each text target
PI052TextTokenizerStep masked text_labels over the assistant turn's
*content only* — the trailing newline was excluded and no EOS token was
ever a supervised label. So the LM head was never given a stop signal:
at inference select_message decoded to max_new_tokens, producing the
runaway subtask paragraphs and the "}"}"}-style VQA tails.

_format_messages now appends the tokenizer's EOS to each supervised
target turn and extends that turn's span to cover it, so the EOS lands
in text_labels. _shifted_ce then trains "<last content token> -> EOS"
and the model learns to terminate; select_message stops on it.

Inference callers (the runtime's _build_text_batch_pi052) pass no
target_indices / eos_token, so no EOS is baked into the prompt — the
model generates it. Verified end-to-end with the PaliGemma tokenizer:
the supervised span is `<content><eos>` and the trailing newline stays
unsupervised.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 17:22:22 +02:00
Roham Z. Nobari dfdc48a7f1 fix(datasets): bound VideoDecoderCache to prevent OOM on large datasets (#3614)
VideoDecoderCache used an unbounded dict keyed on absolute path, with no
eviction in the standard LeRobotDataset path. With shuffled iteration over
datasets that have many distinct mp4 files, every DataLoader worker
accumulated one cached (VideoDecoder, fsspec file handle) pair per distinct
path it had ever touched. Per-entry cost is ~3-5 MB of host RAM plus one
open FD; at ~8 k entries this is roughly 30 GB per worker.

This was hit in the wild during a SmolVLA training run on a 4,195-episode
SO-101 dataset (8,390 mp4s, two cameras per episode). dmesg showed
anon-rss climbing to 34.9 GB on a single pt_data_worker before the OOM
killer fired ~30 min into training; with --num_workers=8 the per-worker
peak halved to 17.9 GB, which is the expected inverse-scaling signature
when the leak is per-decode and the workload is split across workers. The
working workaround on the affected platform was --dataset.video_backend=pyav,
because the pyav path opens/closes per call and never touches this cache.

Switch the backing store to an OrderedDict and evict LRU entries when the
cap is reached, closing the evicted file handle inside the lock so we do
not leak FDs either. Default cap is DEFAULT_DECODER_CACHE_SIZE = 100,
overridable via LEROBOT_VIDEO_DECODER_CACHE_SIZE or by passing max_size=
to the constructor; max_size=None restores the legacy unbounded behaviour
for callers that need it.

Validation on the original failing workload (decode_video_frames_torchcodec
called over real mp4s from the affected SO-101 dataset):

  unbounded:    300 files  ->  +1087 MB host RSS,  cache=300, still climbing
  cap=50:       500 files  ->   +266 MB host RSS,  cache=50,  stable
  cap=50:      2000 calls  ->   +312 MB host RSS,  cache=50,  stable
  cap=100:     1000 calls  ->   +470 MB host RSS,  cache=100, stable

Three independent seeded runs at cap=50 agreed to within 1% (263 / 266 /
265 MB delta), and the 2000-call multi-pass run shows RSS plateaus after
the cap is reached instead of drifting.

Tests in tests/datasets/test_video_decoder_cache.py cover:
default-is-bounded, size cap, LRU ordering, FD close on eviction, FD close
on clear(), cache-hit invariance, max_size=None fallback, and env-var
override. No regressions in test_video_encoding.py, test_streaming.py, or
test_dataset_reader.py (73 prior tests still pass alongside the 8 new ones).
2026-05-19 16:54:25 +02:00
四七 6a8878a639 fix(datasets): normalize shape=(1,) numeric values before HF encoding (#3344)
* fix(datasets): normalize shape=(1,) numeric values before save

* test(datasets): cover shape=(1,) int/bool and finalize

Co-authored-by: Copilot <copilot@github.com>
2026-05-19 16:53:19 +02:00
Caroline Pascal d38eb89f71 feat(video re-encoding): Adding utility and dataset edition tool for video re-encoding (#3611)
* feat(utility): adding video re-encode utility

* feat(edit): adding a new lerobot-edit-dataset tool to re-encode all the videos of a dataset

* chore(format): formatting code

* chore(review): fix Claude reviews

* test(reencode dataset): adding missing test for reencode dataset
2026-05-19 14:46:14 +02:00
Pepijn 7ab4936b1b Add extensive language support (#3467)
* Add extensive language support

* Address review: split persistent/event schemas, drop event timestamps

- recipe.py: derive _VALID_ROLES/_VALID_STREAMS from MessageRole/MessageStream Literals
- dataset_metadata.py: keep CODEBASE_VERSION at v3.0
- language.py: remove RESERVED_STYLES; split arrow/feature schemas into
  persistent (with timestamp) and event (without timestamp); add docstrings
- language_render.py: events use frame-row timestamp implicitly; no
  per-event timestamp filtering or sorting
- converters.py: drop unused subtask_key passthrough
- add docstrings to new public APIs (recipe, render_messages_processor, collate)
- update tests for split schemas; revert uv.lock

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* Add docstrings to all new helpers; revert uv.lock

Covers private helpers in recipe.py, language.py, language_render.py,
and render_messages_processor.py. Also reverts uv.lock to main (it was
re-generated by `uv run` during local checks).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(language): add motion (persistent) and trace (event-only) styles

Promote the previously-reserved motion/trace styles to first-class core
styles. motion routes to language_persistent (it tracks robot state over
time); trace routes to language_events (single-moment annotations).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(language): per-camera tagging on view-dependent styles

Adds a nullable `camera` field to the language row struct (both persistent
and event variants) so view-dependent styles like `vqa` can carry which
`observation.images.*` view they were grounded against. Without this,
multi-camera datasets ended up with multiple `(vqa, role)` rows at the
same timestamp that the resolver could not disambiguate.

- `language.py`: add `camera` to PERSISTENT_ROW_FIELDS / EVENT_ROW_FIELDS,
  to both Arrow struct types and the HF datasets feature mappings;
  introduce VIEW_DEPENDENT_STYLES = {vqa, motion, trace} plus
  `is_view_dependent_style` and `validate_camera_field` helpers (camera
  required iff style is view-dependent).
- `language_render.py`: thread an optional `camera=` kwarg through every
  resolver (`active_at`, `emitted_at`, `nth_prev`, `nth_next`) and through
  `_matching_rows` / `_select_*`, so recipes can disambiguate per-camera
  VQA with `emitted_at(t, style=vqa, role=assistant, camera=...)`.
  Without a `camera` filter, multi-row matches keep raising the existing
  ambiguity error — which is the desired behaviour on multi-camera data.
- `recipes/pi05_hirobot.yaml`: replace the single `ask_vqa` branch with
  `ask_vqa_top` and `ask_vqa_wrist` per-camera sub-recipes (each carrying
  the matching image block), keeping the original 0.20 budget and
  documenting the customization point for datasets with different cameras.
- Tests: schema test asserts the new field order; new tests cover
  `is_view_dependent_style`, `validate_camera_field` (both required and
  forbidden directions), per-camera `emitted_at` filtering, and the
  ambiguity error when two cameras emit `(vqa, assistant)` at the same
  timestamp without a `camera=` filter. RenderMessagesStep + dataset
  passthrough fixtures updated to include the new field.
- `docs/source/language_and_recipes.mdx`: document the `camera` field,
  the per-camera resolver pattern, and the canonical recipe convention.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(language): drop motion from VIEW_DEPENDENT_STYLES

Motion primitives are described in robot-frame (joint / Cartesian) terms,
not pixel space, so they are camera-agnostic. Only `vqa` (event) and
`trace` (event, pixel-trajectory) are view-dependent.

The `camera` field stays on PERSISTENT_ROW_FIELDS for schema symmetry —
the validator, resolver, and HF feature mapping behave identically across
the two columns regardless of which styles populate `camera` today —
but persistent rows now always have `camera=None` in practice.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(language): task_aug style + automatic ${task} rephrasing rotation

Adds task-prompt diversity (Xiao 2022 / CAST) without touching
``meta/tasks.parquet`` or forcing recipes to opt in. The plan reserved
``task_aug`` as a future style; this lands it now.

- ``language.py``: add ``task_aug`` to ``CORE_STYLES`` and
  ``PERSISTENT_STYLES``. ``column_for_style("task_aug")`` returns
  ``language_persistent`` so PR 2 writers route it correctly.

- ``language_render.py``: ``_resolve_task`` now consults the persistent
  slice for rows of ``style="task_aug", role="user"``. When any exist
  it picks one deterministically by ``sample_idx`` (blake2b-keyed, not
  Python's randomized hash) so an epoch sees every rephrasing of every
  episode while the same sample still resolves identically across
  reruns. Falls back to the canonical ``meta/tasks.parquet`` task when
  no rephrasings are present, so existing datasets and unannotated runs
  keep their behaviour. Explicit ``task=`` overrides still win.

- Tests: rephrasing coverage across samples, determinism on repeat
  ``sample_idx``, fallback when persistent has no ``task_aug`` rows,
  and explicit override priority.

Recipes get this for free: any ``${task}`` placeholder rotates through
the available rephrasings. Recipes that want the literal canonical task
can override the binding.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(language): tool catalog in meta/info.json + LeRobotDatasetMetadata.tools

Stores OpenAI-style function schemas at ``meta/info.json["tools"]`` so
datasets can declare which tools are available (today: just ``say``;
tomorrow: per-dataset extensions). The ``DEFAULT_TOOLS`` constant
fills in for unannotated datasets so chat-template consumers don't
have to special-case anything.

Three pieces:

- ``language.py``: ``SAY_TOOL_SCHEMA`` and ``DEFAULT_TOOLS``
  constants. Single source of truth — PR 2's writer and PR 3's
  runtime tool registry will both import from here instead of
  duplicating the dict.
- ``dataset_metadata.py``: ``LeRobotDatasetMetadata.tools`` property
  reads ``info.json["tools"]`` and falls back to ``DEFAULT_TOOLS``.
  Returns deep-copied dicts so callers can mutate the result safely.
- ``docs/source/tools.mdx``: spec page covering the catalog, per-row
  invocations, and the three-step "how to add a new tool" workflow
  (declare schema, implement, register). Linked from the docs
  toctree under the Datasets section.

This lays the groundwork for PR 2's pipeline writing the catalog out
during annotation, and PR 3's ``src/lerobot/tools/`` package shipping
runnable implementations (one file per tool — first up:
``say.py`` wrapping Kyutai's pocket-tts).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* Apply ruff and prettier formatting after merge

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor(language): unify resolver dispatch and prune redundant test scaffolding

* Drop the unused `events` kwarg from `active_at`/`nth_prev`/`nth_next`;
  only `emitted_at` actually consults events. The dispatcher in
  `_resolve_spec` now passes events conditionally.
* Replace the dual `_persistent_sort_key`/`_event_sort_key` pair with a
  single `_row_sort_key` and drop the `sort_key` parameter from
  `_select_one`. Event rows lack `timestamp` (it is implicit in the
  frame) and now default to `0.0` for sort purposes — the
  `(style, role)` tiebreaker is unchanged.
* Inline `_select_latest` into `active_at` (its only caller).
* Collapse `emitted_at`'s dual-branch into one `_select_one` call.
* Tighten `_validate_persistent_resolver` to a single
  `column_for_style(style) != LANGUAGE_PERSISTENT` check.
* Parameterize `test_per_camera_blend_renders_both_views` over the two
  cameras and factor the sub-recipe builder into `_vqa_subrecipe` so
  the test no longer hand-rolls two near-identical recipe blocks.

Net -98 LOC; behavior, public resolver names, and test expectations
unchanged.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(language): always raise on ambiguous resolver matches

`_select_one` previously skipped its ambiguity check whenever any of
`role`/`tool_name`/`camera` was set, on the assumption that the caller
had already pinned down a unique row. That left a real ambiguity hole
for VQA: with two cameras emitting `(vqa, assistant)` at the same
frame, `emitted_at(..., role="assistant")` silently picked the first
sorted row instead of telling the recipe to add `camera=...`. The
existing `test_emitted_at_raises_on_ambiguous_per_camera_vqa` test
already encoded the desired behavior.

Tighten the check: any time `len(rows) > 1` we now raise with the
selectors echoed back, so users see exactly which fields they passed
and that more is needed to disambiguate.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* chore: fix CI — collapse short ValueError to one line, refresh uv.lock

* `ruff format` on CI (newer version) wants the short `camera=None`
  ValueError on a single line.
* `uv.lock` was stale relative to `pyproject.toml`'s `datasets>=4.7.0`
  pin (and picked up upstream `s390x` marker fixes for cuda packages).
  CI runs `uv sync --locked` which rejected the divergence.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(language): keep base install green — drop processor re-export, gate dataset-extra tests

`lerobot.processor` re-exported `RenderMessagesStep` at the package
level, so importing anything from `lerobot.processor` pulled in
`lerobot.datasets.language` → `lerobot.datasets/__init__.py` →
`require_package("datasets")`, which fails in the Tier 1 base install
that intentionally omits the `[dataset]` extra. The chain bricked
collection for unrelated suites (`tests/policies/pi0_pi05/...`,
`tests/envs/...`, etc.).

* Stop re-exporting `RenderMessagesStep` from `lerobot.processor`. The
  only consumer (the test) already imports from the submodule.
  Document the deliberate omission in the module docstring.
* Add `pytest.importorskip("datasets", ...)` (and `pandas` where
  needed) at the top of the four PR-added tests that exercise the
  language stack:
  - tests/datasets/test_language.py
  - tests/datasets/test_language_render.py
  - tests/processor/test_render_messages_processor.py
  - tests/utils/test_collate.py

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(language): address review — tools accessor, motion docs, conditional collate

* **`meta.tools` actually reads `info.json["tools"]`.** `DatasetInfo`
  had no `tools` field, so `from_dict` silently dropped the key (it
  warned about unknown fields then discarded them) and the property
  always returned `DEFAULT_TOOLS`. Added `tools: list[dict] | None`
  to the dataclass; `to_dict()` drops it when unset so existing
  datasets keep a clean `info.json`. Fixed the accessor to read
  `self.info.tools` (the previous `.get(...)` would have raised
  AttributeError on the dataclass anyway). Added regression tests:
  fallback when absent, round-trip from disk, and round-trip
  through `DatasetInfo.from_dict` / `to_dict`.

* **`motion` is not view-dependent — fix the docs.** The mdx claimed
  rows of style `motion` must carry `camera`, but `VIEW_DEPENDENT_STYLES
  = {"vqa", "trace"}` and the validator agrees: motion primitives are
  joint/Cartesian-frame, not pixel-space. Updated both call-out
  paragraphs in `language_and_recipes.mdx`.

* **Conditional `collate_fn` swap.** Added `meta.has_language_columns`
  and gate the `lerobot_collate_fn` swap in `lerobot_train.py` on it,
  so non-language datasets keep PyTorch's `default_collate`. Also
  added a pass-through test in `test_collate.py` that asserts on a
  plain tensor batch the custom collate matches `default_collate`
  key-for-key, plus a test for the `None`-sample drop path.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* review: dedupe regex, centralize column names, harden collate, more tests

* **#2 — dedupe `_PLACEHOLDER_RE`.** The same regex was compiled in
  `recipe.py` and `language_render.py`. Promote to module-level
  `PLACEHOLDER_RE` in `recipe.py` (its primary owner — declares
  template syntax) and import from `language_render.py`.
* **#3 — centralize language column names.** `io_utils.py` had
  hardcoded `{"language_persistent", "language_events"}` literals at
  two sites. Replace with `LANGUAGE_COLUMNS` import so a future column
  rename can't silently desync.
* **#4 — defensive collate preserved-keys.** `lerobot_collate_fn`
  silently filtered language fields from samples that didn't have
  them, which would hand downstream consumers a preserved list
  shorter than the tensor batch. Now: if any sample carries a key,
  every sample in the batch must carry it; otherwise raise a
  `ValueError` so the upstream rendering bug surfaces at the boundary.
* **#5 — `_scalar` rejects non-singleton lists.** Previously a zero-
  or multi-element list fell through and triggered confusing
  `float([])` errors downstream. Now raises `ValueError` with the
  actual length.
* **#6 — refactor `_extract_complementary_data`.** Replace 11 lines
  of `key = {... if ... else {}}` plus an 11-line splat dict with a
  single `_COMPLEMENTARY_KEYS` tuple iterated once.
* **#7 — document `EXTENDED_STYLES`.** Was an empty `set()` with no
  comment. Add a docstring explaining it's an intentional extension
  point: downstream modules append project-local styles before
  `column_for_style` is called.
* **#9 — `tools.mdx` notes the runtime layer is future work.** The
  page referenced `src/lerobot/tools/`, `registry.py`, and
  `get_tools(meta)` — none exist in this PR. Added a callout at the
  start of "How to add your own tool" plus a note on the
  implementations paragraph.
* **#10 — tests for YAML round-trip, malformed rows, blend
  validation.** `test_recipe.py` grew from 1 case to 12 covering:
  blend-or-messages exclusivity, target-turn requirement, blend
  emptiness, weight presence/positivity, nested-blend rejection,
  `from_dict` with nested blends, `from_yaml` / `load_recipe`
  agreement, top-level non-mapping rejection. Added a malformed-row
  test for `_normalize_rows` that asserts non-dict entries raise
  `TypeError`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* review: emitted_at uses 0.1s tolerance; MessageTurn requires stream at construction

* **Float tolerance in `emitted_at` for persistent styles.** The
  ``_timestamp(row) == t`` exact-equality check silently missed any
  caller that derived ``t`` arithmetically (e.g. ``frame_idx / fps``)
  even though the parquet timestamp would only differ by ULPs. Added
  ``EMITTED_AT_TOLERANCE_S = 0.1`` and check ``abs(...) <= tolerance``
  instead, with a docstring explaining why exact equality wasn't
  enough and why 0.1 s is safe at typical 30–100 Hz control rates.
  Test asserts the new behavior at half-window (matches) and
  double-window (no match) using the constant so it stays in sync.

* **`MessageTurn.stream` is required at construction.** It was typed
  ``MessageStream | None = None`` so YAML could omit ``stream:`` and
  pass the dataclass invariant — but ``_validate_rendered`` rejected
  ``None`` streams later, surfacing the error at the first sample
  instead of at recipe load. Now ``__post_init__`` raises
  ``ValueError`` if ``stream`` is ``None``, with the list of valid
  streams in the message. The redundant late-stage check in
  ``_validate_rendered`` is replaced with a one-line comment that
  cites the upstream invariant. Test pins the new construction-time
  rejection.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(tools): drop follow-up-PR references

Reword the two callouts in `tools.mdx` to describe the runtime layer
in present tense ("not part of the catalog layer shipped today",
"those modules don't yet exist in the tree") instead of pointing at a
specific follow-up PR. Keeps the doc honest about what works now
without coupling it to a particular release order.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* review: address CarolinePascal feedback

- language timestamps: float64 -> float32 to match LeRobotDataset frame
  timestamps (Arrow struct + HF feature)
- dataset_metadata: hoist `.language` imports to module top — language.py
  has no lerobot imports, so there is no circular-import risk
- dataset_metadata: add a `meta.tools` setter that persists the catalog to
  info.json and reloads `meta.info`
- feature_utils: validate the `language` dtype instead of returning "" —
  warn (non-fatal) when a non-empty value is written at record time
- centralize the scalar-unwrap helper as `lerobot.utils.utils.unwrap_scalar`,
  shared by render_messages_processor and language_render
- docs: move `## Layer 2 — recipe anatomy` ahead of the resolver sections,
  which describe recipe bindings rather than dataset layout
- language_render: note in EMITTED_AT_TOLERANCE_S that persistent rows change
  on a human-action timescale, not the camera frame rate

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 14:46:11 +02:00
pepijn 2ea0da2d9f fix(annotate): tag uploaded dataset revision
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-19 12:44:35 +00:00
Pepijn ce47075d6b feat(annotate): deterministic plan, single-frame VQA, dataset tagging
Port the steerable-pipeline refinements developed on feat/smolvla-on-
steerable back into the annotation pipeline itself:

- module_1_subtasks: imperative verb-first telegraphic labels with a
  consistent-object-noun rule and good/bad examples (no hard word cap).
- _generate_plan: drop the VLM round-trip; the plan is now a
  deterministic numbered list of still-todo subtasks, re-emitted at
  every subtask boundary so it shrinks as work progresses. Removes
  module_1_plan.txt.
- VqaConfig.K 3 -> 1: a VQA pair anchors exactly its emission frame, no
  stale-label temporal smear.
- lerobot-annotate: tag the pushed dataset with its codebase_version so
  LeRobotDataset can resolve a revision and load it.
- module_2_interjection: shorter, more natural mid-task cues.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 14:06:15 +02:00
pepijn 22c9c4905e fix(pi052): avoid dense CE over padded tokens
Select only supervised text and FAST action-code positions before cross-entropy to avoid full-vocabulary loss tensors over padded sequences.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-18 18:40:34 +00:00
Pepijn 3c15fd8537 feat(robots): natively integrate Seeed Studio reBot B601-DM arm (#3624)
* feat(robots): natively integrate Seeed Studio reBot B601-DM arm

Add first-class LeRobot support for the Seeed Studio reBot arm, replacing
the out-of-tree `lerobot-robot-seeed-b601` / `lerobot-teleoperator-rebot-arm-102`
plugin packages.

New devices:
- robot `rebot_b601_follower` — single-arm B601-DM follower (6-DOF + gripper,
  Damiao CAN motors via `motorbridge`)
- robot `bi_rebot_b601_follower` — bimanual follower composing two single arms
- teleoperator `rebot_102_leader` — single-arm StarArm102 / reBot Arm 102 leader
  (FashionStar UART servos via `motorbridge-smart-servo`)
- teleoperator `bi_rebot_102_leader` — bimanual leader composing two single arms

The bimanual variants reuse the single-arm classes and namespace each arm's
observation/action keys with `left_` / `right_` prefixes, so a bimanual
StarArm102 leader can teleoperate a bimanual reBot B601 follower.

Optional SDK imports are guarded; a `rebot` extra installs `motorbridge` and
`motorbridge-smart-servo`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs: add reBot B601-DM calibration & dual-arm teleoperation guide

Add docs/source/rebot_b601.mdx covering single-arm and bimanual
calibration and teleoperation for the reBot B601-DM follower and
reBot Arm 102 leader, with zero-position reference images from the
Seeed Studio wiki. Register the page in the docs toctree.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs: fix reBot B601 MDX build (move JSON example out of <Tip>)

The doc-builder parses `{...}` inside MDX component children as a
Svelte expression, so the joint_directions JSON example broke the
build. Move it into a top-level fenced code block.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs: apply prettier formatting to reBot B601 page

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs: remove duplicate colocated reBot B601 page

docs/source/rebot_b601.mdx is the canonical, toctree-registered page;
the colocated rebot_b601.md was a redundant thinner copy.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs: clarify 6-DOF leader fallback comment in reBot B601 follower

Explain that holding wrist_yaw at zero is what lets a 6-DOF leader
(e.g. so100_leader / so101_leader) teleoperate the 7-DOF follower.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor: address Caroline's PR review on reBot B601 integration

- leader: remove _validate_config (no other lerobot device validates its
  config; a key mismatch now surfaces as a plain KeyError)
- leader: simplify _round_to_valid_range to direct modular arithmetic
  instead of a bidirectional search loop
- leader: inline the single-use _clamp helper
- follower & leader: write MotorCalibration range_min/range_max from the
  configured joint_limits / joint_ranges instead of a fixed [-90, 90]
- docs: add a "Find the USB ports" section (lerobot-find-port) and move
  the brltty/permissions tip there; link the OpenArm page for SocketCAN
  adapter configuration

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 19:49:21 +02:00
pepijn 1750a87104 fix(pi052): handle batched rendered messages
Tokenize batched recipe outputs in PI052 so training batches with nested message lists do not crash before model forward.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-18 17:41:58 +00:00
pepijn 0e2dc1b76f fix(pi052): supervise only FAST action-code tokens
Mask the FAST auxiliary loss to discrete action-code tokens so wrapper formatting tokens do not affect action co-training.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-18 17:38:34 +00:00
Pepijn 1bd53cc7da fix(annotate): decode keyframes via ffmpeg CLI fallback
PyAV segfaulted (exit 139) decoding the AV1 streams modern LeRobot
datasets use — a SIGSEGV that the per-episode try/except cannot catch,
killing the whole job when the interjections phase started.

Replace the PyAV fallback with _decode_frames_ffmpeg, which shells out
to the ffmpeg CLI: a full ffmpeg build decodes AV1, and a child-process
crash is a catchable non-zero exit rather than a segfault. Decoder chain
is now torchcodec -> ffmpeg. _decode_frames_av stays available behind
video_backend="pyav" for callers that want it.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 16:08:31 +02:00
Pepijn 0f5f0e4091 refactor(recipes): rename recipes, drop pi05_hirobot
- hirobot.yaml            -> subtasks_vqa.yaml
- hirobot_memory.yaml     -> subtask_mem_vqa_speech.yaml
- pi05_hirobot.yaml       -> deleted (stale: uses plan, top-camera names;
  superseded by the two recipes above)
- smolvla2_hirobot.yaml   -> deleted (was untracked stale junk)

Updated the smolvla2 / pi052 `recipe_path` config defaults, all
docstring / comment references, the annotation-pipeline + recipe docs,
and the three tests that loaded pi05_hirobot.yaml (repointed to the
renamed recipes; the low-level-branch and pipeline-render assertions
now accept a flow-only `low_level` stream as valid supervision, since
the new recipes' low_level_execution has no text-CE target).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 16:02:15 +02:00
Pepijn 7128bb1769 fix(annotate): decode keyframes via PyAV directly
The pyav fallback routed through lerobot's decode_video_frames(backend=
"pyav"), which uses torchvision.io.VideoReader — removed in torchvision
0.23+. On modern torch stacks (e.g. vllm-openai with torchvision 0.26)
both torchcodec and that path fail, leaving interjection/vqa prompts
without visual context.

Add _decode_frames_av: a self-contained PyAV decoder that picks the
nearest frame per timestamp. It is the always-available tail of the
decoder chain (torchcodec -> pyav) and the target of --video_backend=pyav.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 15:45:04 +02:00
Pepijn 426d48dbbf fix(pi052): port the smolvla2 text-head fixes to pi052
pi052 had the same text-CE collapse bug smolvla2 had — PaliGemma's
embed_prefix flags the language block att=0, so make_att_2d_masks makes
it fully bidirectional and the text cross-entropy degenerates into a
copy task. Ported the three model-specific fixes:

- _mark_target_span_causal: set att=1 on supervised target language
  positions so the text-CE is genuine causal next-token prediction.
  Applied in both _compute_all_losses_fused and _compute_text_and_fast_loss.
- flow_loss_weight 10.0 -> 5.0: the paper's a=10 swamps the LM head once
  the flow-only low_level recipe fires often (matches SmolVLA2Config).
- _flatten_say_tool_calls in the text tokenizer: serialize `say` tool
  calls into a <say>...</say> marker so the spoken reply is tokenized
  and supervised (PaliGemma's flat prompt has no structured calls, so
  they were dropped entirely).

select_message needed no change: pi052's prefix is [images, language]
with no trailing state token, so it already decodes from the last
language token.

Regression tests mirror the smolvla2 attention-masking + tool-call suite.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 15:42:19 +02:00
Pepijn fbcb9225f5 feat: oversample sparse VQA annotations (recipe consumption + weighted sampler)
VQA annotations are sparse, so VQA was badly underrepresented in training:
its effective share was weight x density, and blend draws that picked an
ask_vqa* sub-recipe for a non-VQA frame were wasted entirely.

Two pieces:

1. Recipe-side consumption (language_render.py): render_sample now routes
   any frame that carries a VQA annotation to a matching ask_vqa* sub-recipe,
   regardless of the weighted blend draw. No VQA annotation is wasted and no
   draw lands on a non-renderable VQA recipe — VQA's recipe-side share now
   equals the VQA-annotation density.

2. Dataset-side oversampling (WeightedEpisodeAwareSampler + vqa_target_fraction):
   a new weighted, episode-aware sampler draws frames with replacement by
   per-frame weight. When TrainPipelineConfig.vqa_target_fraction is set, the
   train script scans language_events, weights VQA frames so they make up
   ~that fraction of the training stream, and uses the weighted sampler. This
   is what actually lets VQA exceed its natural density. Default None keeps
   uniform episode-aware sampling unchanged.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 15:30:00 +02:00
Pepijn Kooijmans 9dfc9084e1 review: decode keyframes via video_utils.decode_video_frames
Addresses three of CarolinePascal's frames.py comments (the fourth, the
subprocess re-encode, waits on #3611):

- replace the bespoke _decode_pyav_direct PyAV decoder with
  lerobot.datasets.video_utils.decode_video_frames (torchcodec backend,
  PyAV fallback) — torchvision's VideoReader removal no longer applies
- frames flow through the provider as torch.Tensor (C, H, W uint8); PIL
  is materialised only at the VLM-message boundary in to_image_blocks /
  to_video_block, where the chat backends need it
- _decode now returns exactly one frame per timestamp (or [] on failure),
  so frames_at pairs them with strict=True

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 14:00:38 +02:00
Pepijn Kooijmans fd18beb3a1 review: address CarolinePascal feedback
- name the three modules everywhere (plan / interjections / vqa) instead
  of module_1/2/3 — config classes, config fields, executor params,
  staging keys and phase names now carry the module name
- rename examples/annotation -> examples/annotations; add the Apache
  header to run_hf_job.py
- drop the unused GeneralVqaModule._generate_one
- remove "PR 1" references from comments/docstrings
- frames.py: rely on the always-defined LeRobotDatasetMetadata.camera_keys
- executor.py: read/write meta/info.json via load_info / write_info
- reader.py: load meta/tasks.parquet via io_utils.load_tasks
- make --push_to_hub a bool; push the annotated dataset back to --repo_id
- move the on-disk test dataset builder into tests/fixtures
  (build_annotation_dataset); run_e2e_smoke reuses it
- clarify in the docs that the vqa module grounds each pair on a single
  frame (K = per-tick anchor count)
- hoist stdlib dynamic imports to module scope

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 12:03:25 +02:00
Pepijn 26cb38a7d0 feat(smolvla2): startup task picker, /vlm mode toggle, interactive VQA overlay
Three additions to the SmolVLA2 interactive runtime:

1. Startup task picker — when no --task is given, the runtime lists the
   dataset's task strings as a numbered menu (plus a custom-task option)
   instead of silently waiting for the first stdin line.

2. Mode toggle — /action and /vlm slash commands flip a persistent run
   mode. /vlm pauses the whole action loop (HighLevelSubtaskFwd,
   LowLevelForward and DispatchAction gate on state["mode"]) and clears
   the action queue so the robot holds position; /action resumes it.
   The mode is shown in the state panel.

3. Interactive VQA — in /vlm mode a typed line is a VQA question. The
   new inference/vqa.py module asks which camera to ground on, runs the
   VLM on that single camera, and when the answer is a bbox/keypoint it
   draws the overlay, saves a PNG to ./vqa_overlays/ and auto-opens it.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 11:20:57 +02:00
Pepijn bfb8cfb432 fix(smolvla2): flatten say tool_calls into <say> marker before tokenizing
The chat tokenizer passed assistant `tool_calls` straight to
`apply_chat_template`, which renders them as a structured JSON
`<tool_call>` block — so the LM head was trained to emit JSON. But the
inference parser `_split_plan_and_say` looks for a `<say>...</say>`
marker, which the model never saw in training, so the `say` tool never
fired at inference.

`_flatten_say_tool_calls` is the missing training-time serializer (the
one `_split_plan_and_say`'s docstring already assumed existed): it
rewrites a `say` tool call into a `<say>...</say>` marker inside the
content text before the chat template runs, so the template only
tokenizes plain text and the supervised target span trains the model to
emit exactly the marker the runtime parses back (Pi 0.5-style flat
tool-call serialization).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 10:47:31 +02:00
Pepijn bf996c7938 fix(datasets): render flow-only low_level recipes instead of dropping them
A recipe whose only supervision is the action-expert flow loss (e.g.
`low_level_execution`: `user(${subtask})` with `stream: low_level` and no
`target` turn) was rejected at render time by `_render_message_recipe` and
`_validate_rendered`, both of which required at least one target turn.

The result: every blend draw of the flow-only recipe rendered to `None`,
`predict_actions` was never set, `run_flow` never fired, and the action
expert received no flow loss — leaving it at random init. Both gates now
also accept a `low_level`-stream turn as valid supervision.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-17 13:20:39 +02:00
Pepijn 0d88eaf8eb test(smolvla2): attention masking of the language target span
Regression coverage for the text-CE collapse bug fixed in 3cd348ff.
Pure-function tests over ``_mark_target_span_causal`` /
``_locate_lang_range`` / ``make_att_2d_masks`` — no model load, fast.

Pins:
* the target span flips to att=1, prompt/images stay att=0;
* target tokens attend causally among themselves (no peeking at
  future targets) — genuine next-token prediction;
* targets still attend bidirectionally to images + the user prompt;
* the action-expert (state) token still attends to every target;
* a no-target subtask (low_level_execution user turn, labels all
  -100) leaves the mask bidirectional;
* an explicit test documenting the bug: the raw embed_prefix mask
  lets the first target token see the last — the copy-task collapse.

Skips cleanly when transformers isn't installed.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-16 18:28:44 +02:00
Caroline Pascal bd9619dfc3 feat(encoding parameters): adding support for user provided video encoding parameters (#3455)
* chore(video backend): renaming codec into video_backend in get_safe_default_video_backend()

* feat(pyav utils): adding suport for PyAV encoding parameters validation

* feat(VideoEncoderConfig): creating a VideoEncoderConfig to encapsulate encoding parameters

* feat(VideoEncoderConfig): propagating the VideoEncoderConfig in the codebase

* chore(docs): updating the docs

* feat(metadata): adding encoding parameters in dataset metadata

* fix(concatenation compatibility): adding compatibility check when concatenating video files

* feat(VideoEncoderConfig init): making VideoEncoderConfig more robust and adaptable to multiple backends

* feat(pyav checks): making pyav parameters checks more robust

* chore(duplicate): removing duplicate get_codec_options definition

* test(existing): adapting existing tests

* test(new): adding new tests for encoding related features

* chore(format): fixing formatting issues

* chore(PyAV): cleaning up PyAV utils and encoding parameters checks to stick to the minimun required tooling.

* chore(format): formatting code

* chore(doctrings): updating docstrings

* fix(camera_encoder_config): Removing camera_encoder_config from LeRobotDataset, as it's only required in LeRobotDatasetWriter.

* feat(default values): applying a consistent naming convention for default RGB cameras video encoder parameters

* fix(rollout): propagating VideoEncoderConfig to the latest recording modes

* chore(format): formatting code, fixing error messages and variable names

* fix(arguments order): reverting changes in arguments order in StreamingVideoEncoder

* chore(relative imports): switching to relative local imports within lerobot.datasets

* test(artifacts): cleaning up artifacts for the video encoding tests

* chore(docs): updating docs

* chore(fromat): formatting code

* fix(imports): refactoring the file architecture to avoid circular imports. VideoEncoderConfig is now defined in lerobot.configs and lazily imports av at runtime.

* fix(typos): fixing typos and small mistakes

* test(factories): updating factories

* feat(aggregate): updating dataset aggregation procedure. Encoding tuning paramters (crf, g,...) are ignored for validation and changed to None in the aggregated dataset if incompatible.

* docs(typos): fixing typos

* fix(deletion): reverting unwanted deletion

* fix(typos): fixing multiple typos

* feat(codec options): passing codec options to lerobot_edit_dataset episode deletion tool

* typo(typo): typo

* fix(typos): fixing remaining typos

* chore(rename): renaming camera_encoder_config to camera_encoder

* docs(clean): cleaning and formating docs

* docs(dataset): addind details about datasets

* chore(format): formatting code

* docs(warning): adding warning regarding encoding parameters modification

* fix(re-encoding): removing inconsistent re-encoding option in lerobot_edit_dataset

* typos(typos): typos

* chore(format): resolving prettier issues

* fix(h264_nvenc): fixing crf handling for h264_nvenc

* docs(clean): removing too technical parts of the docs

* fix(imports): fixing imports at the __init__ level

* fix(imports): fixing not very pretty imports in video config file
2026-05-14 23:46:42 +02:00
Jash Shah fe96b28c74 Fix policy.path not working in YAML config files (#3145)
* fix(config): support policy.path in YAML config files

policy.path was only handled via CLI args (filtered from sys.argv before
draccus, then retrieved in validate()). When specified in YAML, draccus
would crash because 'path' is not a valid field on PreTrainedConfig.

Extract path fields from the YAML/JSON config before draccus processes
it, store them in a module-level dict, and fall back to it in
get_path_arg() when the CLI doesn't have the path.

Fixes #2957

* fix(parser): preserve YAML policy overrides when loading from pretrained

When policy.path is set in YAML, validate() was calling from_pretrained
with only CLI overrides, discarding any YAML policy fields (e.g. lr,
batch_size) that draccus had already parsed. Fix by capturing the
remaining YAML fields as CLI-style args in _config_yaml_overrides and
merging them into the overrides passed to from_pretrained in train.py,
eval.py, and lerobot_record.py (CLI args still take precedence).

Also fix the NamedTemporaryFile SIM115 ruff warning and add types-PyYAML
to the mypy pre-commit hook.

* fix(parser): serialize bool/None values correctly in YAML policy overrides

Bool values from YAML configs (e.g. push_to_hub: true) were passed as
Python "True"/"False" strings instead of lowercase "true"/"false" that
draccus expects. Also skip None values to avoid passing "None" strings.

* revert: remove types-PyYAML from .pre-commit-config.yaml

* chore: fix quality check caused by untyped YAML import

Co-authored-by: masato-ka <jp6uzv@gmail.com>
Signed-off-by: Khalil Meftah <khalil.meftah@huggingface.co>

---------

Signed-off-by: Khalil Meftah <khalil.meftah@huggingface.co>
Co-authored-by: Khalil Meftah <khalil.meftah@huggingface.co>
Co-authored-by: masato-ka <jp6uzv@gmail.com>
2026-05-13 09:45:27 +02:00
Caroline Pascal f218d5ab30 feat(episodes): adding support for metadata based episodes filtering (#3530)
* feat(episode filtering): adding support for episodes filtering at initialization time in LeRobotDataset

* test(tests): adding tests

* chore(format): formatting code

* feat(performance): improving implementation for better performances on big datasets

* chores(warning): improving warnings and errors for episodes filtering

* test(invalid key): adding test for invalid filtering key

* chore(format): formatting code
2026-05-12 20:44:11 +02:00
Khalil Meftah e963e5a0c4 RL stack refactoring (#3075)
* refactor: RL stack refactoring — RLAlgorithm, RLTrainer, DataMixer, and SAC restructuring

* chore: clarify torch.compile disabled note in SACAlgorithm

* fix(teleop): keyboard EE teleop not registering special keys and losing intervention state

Fixes #2345

Co-authored-by: jpizarrom <jpizarrom@gmail.com>

* fix: remove leftover normalization calls from reward classifier predict_reward

Fixes #2355

* fix: add thread synchronization to ReplayBuffer to prevent race condition between add() and sample()

* refactor: update SACAlgorithm to pass action_dim to _init_critics and fix encoder reference

* perf: remove redundant CPU→GPU→CPU transition move in learner

* Fix: add kwargs in reward classifier __init__()

* fix: include IS_INTERVENTION in complementary_info sent to learner for offline replay buffer

* fix: add try/finally to control_loop to ensure image writer cleanup on exit

* fix: use string key for IS_INTERVENTION in complementary_info to avoid torch.load serialization error

* fix: skip tests that require grpc if not available

* fix(tests): ensure tensor stats comparison accounts for reshaping in normalization tests

* fix(tests): skip tests that require grpc if not available

* refactor(rl): expose public API in rl/__init__ and use relative imports in sub-packages

* fix(config): update vision encoder model name to lerobot/resnet10

* fix(sac): clarify torch.compile status

* refactor(rl): update shutdown_event type hints from 'any' to 'Any' for consistency and clarity

* refactor(sac): simplify optimizer return structure

* perf(rl): use async iterators in OnlineOfflineMixer.get_iterator

* refactor(sac): decouple algorithm hyperparameters from policy config

* update losses names in tests

* fix docstring

* remove unused type alias

* fix test for flat dict structure

* refactor(policies): rename policies/sac → policies/gaussian_actor

* refactor(rl/sac): consolidate hyperparameter ownership and clean up discrete critic

* perf(observation_processor): add CUDA support for image processing

* fix(rl): correctly wire HIL-SERL gripper penalty through processor pipeline

(cherry picked from commit 9c2af818ff)

* fix(rl): add time limit processor to environment pipeline

(cherry picked from commit cd105f65cb)

* fix(rl): clarify discrete gripper action mapping in GripperVelocityToJoint for SO100

(cherry picked from commit 494f469a2b)

* fix(rl): update neutral gripper action

(cherry picked from commit 9c9064e5be)

* fix(rl): merge environment and action-processor info in transition processing

(cherry picked from commit 30e1886b64)

* fix(rl): mirror gym_manipulator in actor

(cherry picked from commit d2a046dfc5)

* fix(rl): postprocess action in actor

(cherry picked from commit c2556439e5)

* fix(rl): improve action processing for discrete and continuous actions

(cherry picked from commit f887ab3f6a)

* fix(rl): enhance intervention handling in actor and learner

(cherry picked from commit ef8bfffbd7)

* Revert "perf(observation_processor): add CUDA support for image processing"

This reverts commit 38b88c414c.

* refactor(rl): make algorithm a nested config so all SAC hyperparameters are JSON-addressable

* refactor(rl): add make_algorithm_config function for RLAlgorithmConfig instantiation

* refactor(rl): add type property to RLAlgorithmConfig for better clarity

* refactor(rl): make RLAlgorithmConfig an abstract base class for better extensibility

* refactor(tests): remove grpc import checks from test files for cleaner code

* fix(tests): gate RL tests on the `datasets` extra

* refactor: simplify docstrings for clarity and conciseness across multiple files

* fix(rl): update gripper position key and handle action absence during reset

* fix(rl): record pre-step observation so (obs, action, next.reward) align in gym_manipulator dataset

* refactor: clean up import statements

* chore: address reviewer comments

* chore: improve visual stats reshaping logic and update docstring for clarity

* refactor: enforce mandatory config_class and name attributes in RLAlgorithm

* refactor: implement NotImplementedError for abstract methods in RLAlgorithm and DataMixer

* refactor: replace build_algorithm with make_algorithm for SACAlgorithmConfig and update related tests

* refactor: add require_package calls for grpcio and gym-hil in relevant modules

* refactor(rl): move grpcio guards to runtime entry points

* feat(rl): consolidate HIL-SERL checkpoint into HF-style components

Make `RLAlgorithmConfig` and `RLAlgorithm` `HubMixin`s, add abstract
`state_dict()` / `load_state_dict()` for critic ensemble, target nets
and `log_alpha`, and persist them as a sibling `algorithm/` component
next to `pretrained_model/`. Replace the pickled `training_state.pt`
with an enriched `training_step.json` carrying `step` and
`interaction_step`, so resume restores actor + critics + target nets +
temperature + optimizers + RNG + counters from HF-standard files.

* refactor(rl): move actor weight-sync wire format from policy to algorithm

* refactor(rl): update type hints for learner and actor functions

* refactor(rl): hoist grpcio guard to module top in actor/learner

* chore(rl): manage import pattern in actor (#3564)

* chore(rl): manage import pattern in actor

* chore(rl): optional grpc imports in learner; quote grpc ServicerContext types

---------

Co-authored-by: Khalil Meftah <khalil.meftah@huggingface.co>

* update uv.lock

* chore(doc): update doc

---------

Co-authored-by: jpizarrom <jpizarrom@gmail.com>
Co-authored-by: Steven Palma <imstevenpmwork@ieee.org>
2026-05-12 15:49:54 +02:00
Pepijn 1238a0cd47 test(annotate): unstale the two failing module tests
Both tests were stale relative to design changes that landed earlier on
this branch. Update the tests to match the current production contract.

**``test_module1_attaches_video_block_to_subtask_prompt``**

The test took ``captured[0]`` and asserted on its content blocks, but
Module 1 issues several sub-prompts and the rephrasings call (which is
text-only, no video block) usually lands first. Two fixes:

* The test's intent is "the subtask prompt carries the video block" —
  not "the first prompt carries it". Pick the call by content
  (``"atomic subtasks"`` keyword in the text block) so the test is
  resilient to future reordering of unrelated sub-prompts.
* Set ``n_task_rephrasings=0`` so the rephrasings call is skipped
  entirely — keeps the test focused on ``_generate_subtasks``.

**``test_module2_mid_episode_emits_paired_interjection_and_speech``**

Two issues both rooted in design changes on the branch:

1. ``InterjectionsAndSpeechModule._mid_episode_interjections`` now
   anchors interjections on subtask boundaries from Module 1's staging
   tree, bailing out with zero rows when no spans exist. The production
   executor runs Module 1 first; the test ran Module 2 in isolation.
   Reproduce the contract by seeding two ``style=subtask`` rows in the
   staging before calling Module 2 — gives it the single ``0 → 1``
   boundary it needs.
2. The test's stub responder used the marker ``"ONE realistic
   interruption"`` to match the interjection prompt, but that string is
   from a previous prompt version. The current
   ``module_2_interjection.txt`` says ``"Write ONE interjection..."`` —
   the old prompt asked for counterfactual interjections (e.g. "skip the
   wipe"), the new one anchors on the upcoming subtask. Marker updated
   to ``"Write ONE interjection"``; canned response wording aligned to
   the new design.

Sweep on the language stack: 66 passed, 0 failed (was 64 passed, 2
failed). Pre-commit clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-08 11:59:27 +02:00
Pepijn 53c7641885 review: fix dead-code bug, add thread safety, atomic writes, smaller cleanups
**Critical: video_for_episode was unreachable dead code.**
``video_for_episode`` was indented inside ``_decode_pyav_direct``, after
its ``return`` statement — Python parsed it as a nested function that
never executed. Module 1's ``_episode_video_block`` calls
``self.frame_provider.video_for_episode(record, target_count)`` on the
``use_video_url=False`` path, which would have AttributeError'd on any
real dataset. Tests passed only because they used ``_StubFrameProvider``
/ ``_NullProvider`` which have the method. Moved it to be a proper
method of ``VideoFrameProvider`` (right after ``frames_at``).

**Thread safety on VideoFrameProvider.**
The executor runs Module 1/2/3 phases under a ``ThreadPoolExecutor``, so
the per-instance ``_cache`` dict and the one-shot ``_warned_decode_fail``
flag were exposed to concurrent reads/writes. Added a ``threading.Lock``
field, wrapped cache reads/writes and the warn-flag check-and-set in
``with self._lock:``. Stub fixtures unaffected.

**episode_clip_path is now a method of VideoFrameProvider.**
Used to be a free function reaching into ``provider._meta.episodes`` and
``provider._meta.get_video_file_path`` from outside the class. As a
method it just uses ``self._meta``. The only caller (Module 1) updated;
no external callers.

**Atomic write in LanguageColumnsWriter.**
``pq.write_table(new_table, path)`` was overwriting the parquet shard
in place — a crash mid-write would corrupt the file. Now writes to a
sibling ``.tmp`` and ``Path.replace`` atomically.

**Smaller items:**
* ``executor.py`` docstring opened with "four phases" but listed six.
  Now says "six phases" to match.
* ``[annotations]`` extra in ``pyproject.toml`` now includes
  ``openai>=1.40,<2.0``. Default ``VlmConfig.backend`` is ``"openai"``,
  so without it ``_make_openai_client`` would ImportError on a fresh
  ``uv sync --extra annotations``.
* ``_snap_to_frame`` was duplicated identically in
  ``plan_subtasks_memory.py`` and ``interjections_and_speech.py``.
  Promoted to ``snap_to_frame`` in ``reader.py`` (next to
  ``EpisodeRecord``); both modules now import it. Backwards-compat alias
  not needed — no external callers.
* ``EpisodeRecord.frames_df()`` was re-reading the full parquet on every
  call. Now memoizes via a private dataclass field so repeat calls from
  different modules pay the cost once. Method signature unchanged.
* ``_extract_first_json_object`` had a redundant ``and not escape`` guard
  that was dead because the prior block already handled and reset
  ``escape``. Replaced with a comment explaining the invariant.

**Pre-existing lint cleanups surfaced once these files entered
pre-commit's scope:**
* dead local ``client = clients[0]`` in ``_make_openai_client`` (the
  real round-robin uses ``clients[rr_counter[...]]``).
* ``cmd = ... if "{port}" in cmd else f"...{port}"`` ternary collapse in
  ``_spawn_parallel_inference_servers``.
* ``seek_pts = 0 if stream.time_base is None else int(...)`` ternary
  collapse in ``_decode_pyav_direct``.
* ``# nosec B310`` on the localhost ``urllib.request.urlopen`` probe in
  ``_server_is_up`` — the URL is the user-configured local-server endpoint
  the CLI itself spawned, not arbitrary user input.

**Test added.**
``tests/annotations/test_frames.py`` pins the regression on
``VideoFrameProvider``: asserts ``video_for_episode`` and
``episode_clip_path`` are callable methods (not nested dead code or
free functions), and that the ``_lock`` field is a real
``threading.Lock``.

Sweep: 64 passed, 2 failed (same pre-existing module-impl bugs as
before this commit). Pre-commit clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-08 11:53:43 +02:00
Pepijn 3a52a18b0e Merge branch 'feat/language-columns' into feat/language-annotation-pipeline
Resolve conflicts and pull in the latest PR 1 fixes.

Conflicts:
- pyproject.toml: PR 1 added `lerobot-rollout` and PR 2 added
  `lerobot-annotate` to the same `[project.scripts]` block. Kept both.
- uv.lock: dropped both sides and regenerated against the merged
  `pyproject.toml` (PR 2 dropped the `datatrove` dep when distribution
  moved to HF Jobs; PR 1's lock didn't have it).

Test follow-up:
- `tests/annotations/test_pipeline_recipe_render.py` — PR 1 deleted
  `src/lerobot/configs/recipes/pi05_hirobot.yaml` (review feedback:
  remove the canonical-recipe file; recipes are user-supplied). The
  cross-PR contract this test guards is "the recipe DSL renders
  non-empty messages from pipeline output", which doesn't depend on
  any specific YAML, so the test now builds an inline blend recipe
  with the same coverage. Passes.

Sweep: 82 passed, 2 failed (pre-existing module-impl bugs:
`test_module1_attaches_video_block_to_subtask_prompt`,
`test_module2_mid_episode_emits_paired_interjection_and_speech`).
The PR 1 carryover (`test_emitted_at_raises_on_ambiguous_per_camera_vqa`)
is now passing — the merge brought in PR 1's tightened `_select_one`
ambiguity check.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-08 11:13:11 +02:00
Pepijn bce5387e04 Merge branch 'main' into feat/language-columns 2026-05-08 10:29:49 +02:00
Ville Kuosmanen eaf0218bc8 feat(policy): use pretrained vision encoder weights by default for diffusion and vqbet (#3202)
* feat: add pretrained vision encoder weights for diffusion and vqbet

* fix test by re-generating artifacts

---------

Co-authored-by: Steven Palma <imstevenpmwork@ieee.org>
2026-05-07 12:10:38 +02:00
Pepijn e7e5fca5de review: emitted_at uses 0.1s tolerance; MessageTurn requires stream at construction
* **Float tolerance in `emitted_at` for persistent styles.** The
  ``_timestamp(row) == t`` exact-equality check silently missed any
  caller that derived ``t`` arithmetically (e.g. ``frame_idx / fps``)
  even though the parquet timestamp would only differ by ULPs. Added
  ``EMITTED_AT_TOLERANCE_S = 0.1`` and check ``abs(...) <= tolerance``
  instead, with a docstring explaining why exact equality wasn't
  enough and why 0.1 s is safe at typical 30–100 Hz control rates.
  Test asserts the new behavior at half-window (matches) and
  double-window (no match) using the constant so it stays in sync.

* **`MessageTurn.stream` is required at construction.** It was typed
  ``MessageStream | None = None`` so YAML could omit ``stream:`` and
  pass the dataclass invariant — but ``_validate_rendered`` rejected
  ``None`` streams later, surfacing the error at the first sample
  instead of at recipe load. Now ``__post_init__`` raises
  ``ValueError`` if ``stream`` is ``None``, with the list of valid
  streams in the message. The redundant late-stage check in
  ``_validate_rendered`` is replaced with a one-line comment that
  cites the upstream invariant. Test pins the new construction-time
  rejection.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-06 19:55:08 +02:00
Pepijn beb22afd81 review: dedupe regex, centralize column names, harden collate, more tests
* **#2 — dedupe `_PLACEHOLDER_RE`.** The same regex was compiled in
  `recipe.py` and `language_render.py`. Promote to module-level
  `PLACEHOLDER_RE` in `recipe.py` (its primary owner — declares
  template syntax) and import from `language_render.py`.
* **#3 — centralize language column names.** `io_utils.py` had
  hardcoded `{"language_persistent", "language_events"}` literals at
  two sites. Replace with `LANGUAGE_COLUMNS` import so a future column
  rename can't silently desync.
* **#4 — defensive collate preserved-keys.** `lerobot_collate_fn`
  silently filtered language fields from samples that didn't have
  them, which would hand downstream consumers a preserved list
  shorter than the tensor batch. Now: if any sample carries a key,
  every sample in the batch must carry it; otherwise raise a
  `ValueError` so the upstream rendering bug surfaces at the boundary.
* **#5 — `_scalar` rejects non-singleton lists.** Previously a zero-
  or multi-element list fell through and triggered confusing
  `float([])` errors downstream. Now raises `ValueError` with the
  actual length.
* **#6 — refactor `_extract_complementary_data`.** Replace 11 lines
  of `key = {... if ... else {}}` plus an 11-line splat dict with a
  single `_COMPLEMENTARY_KEYS` tuple iterated once.
* **#7 — document `EXTENDED_STYLES`.** Was an empty `set()` with no
  comment. Add a docstring explaining it's an intentional extension
  point: downstream modules append project-local styles before
  `column_for_style` is called.
* **#9 — `tools.mdx` notes the runtime layer is future work.** The
  page referenced `src/lerobot/tools/`, `registry.py`, and
  `get_tools(meta)` — none exist in this PR. Added a callout at the
  start of "How to add your own tool" plus a note on the
  implementations paragraph.
* **#10 — tests for YAML round-trip, malformed rows, blend
  validation.** `test_recipe.py` grew from 1 case to 12 covering:
  blend-or-messages exclusivity, target-turn requirement, blend
  emptiness, weight presence/positivity, nested-blend rejection,
  `from_dict` with nested blends, `from_yaml` / `load_recipe`
  agreement, top-level non-mapping rejection. Added a malformed-row
  test for `_normalize_rows` that asserts non-dict entries raise
  `TypeError`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-06 19:06:38 +02:00
Haoming Song e99c55af4b feat(policies): add EO-1 model (#3403)
* feat(policies): add EO-1 model

* chore(eo1): adjust policy_eo1_README.md to to avoid duplicate with eo1.mdx

* chore(eo1): remove policy_eo1_README.md, link eo1.mdx in policy folder

---------

Co-authored-by: Pepijn <138571049+pkooij@users.noreply.github.com>
2026-05-06 18:01:16 +02:00