Experience reconcile no longer falls back to ADD-all, and fact reconcile no
longer inserts without superseding, when the model call fails, returns empty
content, or returns a reply that is not a JSON object with an ops list. The
write returns success=false, agent_error_code=RECONCILE_FAILED and the
cause in reconcile_error_code (LLM_UNAVAILABLE / EMPTY_RESPONSE /
JSON_PARSE_FAILED), the same as chat.
Each reconciler is split into plan() (retrieve + model decision, no store)
and apply() (store). CodingWriter plans both layers before applying either,
so a decision failure in either layer stores no experience or fact and
supersedes no older fact. reconcile() still runs plan + apply.
An experience reply of {"ops": []} is a valid "no changes" decision and
stores nothing. A non-empty ops list with no recognizable op is a parse
failure. A fact reply of {"ops": []} inserts without superseding.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
alvinfeiandClaude Opus 5.5
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