chore(drift-sync): needs-human model-family decision (2026-09-02)

[copilotkit-bot]

Needs a human decision (drift-sync)

The deterministic, zero-LLM drift-sync found a model-family change it must
NOT auto-apply (a genuinely new/unclassified family, or a registry
structural mismatch). It wrote the note file(s) below and opened this PR so
the decision is REACHABLE in the repo.

Not auto-merged — a human decides, and applies it by hand.
For a new-family note, DO NOT expect merging this PR to apply anything:
includeFamilies is checksum-pinned, and adding a family moves that pin,
which reds the freeze test gate-2 re-runs. drift-sync cannot re-pin — the
gate-1 allowlist permits only model-registry.ts and drift-proposals/.
So a follow-up run would report gate-failed, not ok-applied.

The procedure that actually works, in ONE commit: add the family to
includeFamilies (or excludeFamilies to reject), re-pin BOTH checksums,
resolve the note file(s) below, and update the offline /models wave.
Then close this PR. Prior examples: 72f85f8, 936b59c.

Note file(s) in this PR

• drift-proposals/anthropic-claude-fable-5-1-new-family.md

drift-sync outcome

npm warn Unknown project config "minimum-release-age". This will stop working in the next major version of npm. See `npm help npmrc` for supported config options.
npm warn Unknown project config "block-exotic-subdeps". This will stop working in the next major version of npm. See `npm help npmrc` for supported config options.
needs-human note(s) written this run — routed to human without a live re-collect (no registry edit to re-verify)
  [needs-human-new-family] anthropic/claude-fable-5-1: "claude-fable-5-1" is unclassified — routed to human (drift-proposals/anthropic-claude-fable-5-1-new-family.md)
npm warn Unknown env config "block-exotic-subdeps". This will stop working in the next major version of npm. See `npm help npmrc` for supported config options.
npm warn Unknown env config "minimum-release-age". This will stop working in the next major version of npm. See `npm help npmrc` for supported config options.
npm warn Unknown project config "minimum-release-age". This will stop working in the next major version of npm. See `npm help npmrc` for supported config options.
npm warn Unknown project config "block-exotic-subdeps". This will stop working in the next major version of npm. See `npm help npmrc` for supported config options.
�[33m[STARTED]�[39m Backing up original state...
�[32m[COMPLETED]�[39m Backed up original state in git stash (e5a6efc)
�[33m[STARTED]�[39m Running tasks for staged files...
�[33m[STARTED]�[39m package.json�[0;90m — 1 file�[0m
�[33m[STARTED]�[39m *.{ts,mts,js,mjs,cjs,json,html,css,md}�[0;90m — 1 file�[0m
�[33m[STARTED]�[39m *.{ts,mts,js,mjs}�[0;90m — 0 files�[0m
�[33m[SKIPPED]�[39m *.{ts,mts,js,mjs}�[0;90m — no files�[0m
�[33m[STARTED]�[39m prettier --write
�[32m[COMPLETED]�[39m prettier --write
�[32m[COMPLETED]�[39m *.{ts,mts,js,mjs,cjs,json,html,css,md}�[0;90m — 1 file�[0m
�[32m[COMPLETED]�[39m package.json�[0;90m — 1 file�[0m
�[32m[COMPLETED]�[39m Running tasks for staged files...
�[33m[STARTED]�[39m Applying modifications from tasks...
�[32m[COMPLETED]�[39m Applying modifications from tasks...
�[33m[STARTED]�[39m Cleaning up temporary files...
�[32m[COMPLETED]�[39m Cleaning up temporary files...
[fix/drift-2026-09-02-33599934280 69fe851] fix(drift-sync): mechanical model-family sync (needs-human note file(s))
 1 file changed, 14 insertions(+)
 create mode 100644 drift-proposals/anthropic-claude-fable-5-1-new-family.md
unchecked-providers=
reason=needs-human
changeset-key=6db8beb2877122b5

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commit: 69fe851