fix(config): fall back to defaults on malformed numeric config values#488
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recall.load_config and capture.load_config both document "read the namespace; fall back to defaults" but only guarded the read of config.yaml itself, not the int()/float() coercion of individual values. a typo like `max_chars: a lot` raised an uncaught ValueError straight out of the SessionStart recall hook; the same shape of typo in capture: crashed observe()/finalize(). compile.load_config already solved this with a small _coerce(value, default, cast) helper (see the comment at compile.py:64-70) and has a test proving it. mirror that pattern in recall.py and capture.py so all three load_config functions honor the same fallback contract, and add the matching regression tests. validated: pytest tests/ -q --ignore=tests/embeddings, mypy src, ruff check src tests all pass.
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what changed:
recall.load_configandcapture.load_confignow route their numeric config values (max_chars,min_observations,dedup_window_seconds) through a small_coerce(value, default, cast)helper instead of a bareint()/float()call, so a malformed value falls back to the default instead of raising.why: both docstrings already promise "read the
<namespace>:stanza; fall back to defaults," andcompile.load_configalready implements exactly that contract with a_coercehelper (seecompile.py:64-70, added for the same reason — a config typo must degrade, not take down every caller).recall.pyandcapture.pyonly guarded the yaml read/parse, not the per-field coercion, so a config typo likemax_chars: a lotraised an uncaughtValueErrorstraight out of the SessionStart recall hook, and the equivalent typo undercapture:crashed any hook-drivenobserve()/finalize()call. this mirrors the existing, tested pattern rather than introducing a new one.nothing on disk changes shape — no migration impact, no effect on an existing
.vouch/directory. behavior only changes for the malformed-value case, which previously crashed.validation commands run:
.venv/bin/python -m pytest tests/ -q --ignore=tests/embeddings(full suite, all green).venv/bin/python -m mypy src(clean).venv/bin/python -m ruff check src tests(clean)ValueErroron the pre-fix code (stashed the src changes, reran) and pass with the fix restored