After every ``lerobot-annotate`` run, the executor ensures
``meta/info.json["tools"]`` contains at minimum the canonical ``say``
schema, while preserving any tools the user pre-declared on the
dataset. Chat-template consumers (PR 3 SmolVLA2 / Pi0.5 / dataset
visualizer) read the catalog through
``LeRobotDatasetMetadata.tools`` and pass it to
``apply_chat_template(messages, tools=meta.tools, ...)``.
- ``executor.py``: new ``_ensure_tools_in_info`` helper called
after the parquet rewrite. Idempotent and additive — merges by
``function.name``, only writes back if the list changed.
- ``writer.py``: drops the duplicated ``SAY_TOOL_SCHEMA`` /
``DEFAULT_TOOLS`` constants in favour of importing from
``lerobot.datasets.language`` (PR 1's single source of truth).
Re-exported so existing imports keep working.
- ``annotation_pipeline.mdx``: replace the "code constant only" note
with a pointer to the new Tools doc and a description of the
meta/info.json behaviour, including how to pre-declare custom
tools before annotation runs.
This is the storage half of the tools work; PR 3 ships the runnable
implementations under ``src/lerobot/tools/`` (one file per tool,
first up: ``say.py`` wired to Kyutai's pocket-tts).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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