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ECC/tests/hooks
Gaurav DubeyandGitHub ff4a06dd91 feat(session-start): make instinct injection count and confidence threshold configurable (#2413)
* feat(session-start): make instinct injection count and confidence threshold configurable

Expose ECC_MAX_INJECTED_INSTINCTS and ECC_INSTINCT_CONFIDENCE_THRESHOLD so
operators can tune SessionStart instinct injection without editing source.
Defaults are unchanged (6 instincts, 0.7 confidence floor).

The two previously hardcoded constants become DEFAULT_-prefixed fallbacks,
resolved through getMaxInjectedInstincts() and getInstinctConfidenceThreshold(),
mirroring the existing getSessionRetentionDays() /
getSessionStartMaxContextChars() env-override pattern already in this file.
Invalid or out-of-range values fall back to the defaults.

Adds subprocess coverage in tests/hooks/hooks.test.js and documents both
variables in the README Hook Runtime Controls section.

Implements part (a) of #2371.

* fix(session-start): reject partial env values for instinct injection knobs

Parse ECC_MAX_INJECTED_INSTINCTS and ECC_INSTINCT_CONFIDENCE_THRESHOLD with
Number() (after trim) instead of parseInt/parseFloat, so malformed values
like "3.9", "6abc", or "0.7x" fall back to the default rather than silently
accepting the numeric prefix (parseInt("3.9")=3, parseFloat("0.7x")=0.7).
Adds a regression assertion that a non-integer count falls back to 6.

* fix(session-start): validate decimal grammar for instinct injection env vars

Number() still accepts non-decimal numeric syntax, so
ECC_INSTINCT_CONFIDENCE_THRESHOLD=0x1 resolved to 1 and
ECC_MAX_INJECTED_INSTINCTS=1e2 to 100. Gate each value on a strict format
(/^\d+(\.\d+)?$/ for the 0-1 threshold, /^\d+$/ for the positive-integer
count) before converting, so hex/exponent/partial values fall back to the
default. Adds regression assertions for 1e2 and 0x1.
2026-07-03 20:40:17 -07:00
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