docs(models): GPT-5.6 Sol supersedes GPT-5.5 as cross-model reviewer#441
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This was referenced Jul 10, 2026
OpenAI shipped a new flagship family (gpt-5.6-sol / gpt-5.6-terra / gpt-5.6-luna) superseding GPT-5.5. Updates the reviewer-model guidance inherited by every consumer repo: AI_SETUP_LANES.md, README.md, CLAUDE_CODE_SDLC_WIZARD.md, both SKILL.md copies, AGENTS.md, and this repo's own CLAUDE.md now name GPT-5.6 Sol (fallback: Terra) at xhigh, with historical citations to GPT-5.5/5.4 left untouched. Adds a documented (non-default) escalation to max/Pro mode for unusually risky PRs in AI_SETUP_LANES.md's Final Review Policy, and 8 new per-location regression tests in test-doc-consistency.sh — mutation-verified against Sol/Terra/Luna swaps and a version-bump scenario, not just aggregate "mentions 5.6 somewhere" checks. Reviewed by Fable and Codex (GPT-5.6 Sol, xhigh) across 3 rounds to CERTIFIED. ROADMAP #439
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…net 5 medium default (#448) Catch-up release: seven consumer-affecting commits were stranded on main since v1.86.0 (July 5) because nothing prompts the manual tag-to-publish step — most urgently #445, the Copilot CLI argument-hint fix from the repo's first external contributor (@thejesh23), which npm consumers were not receiving. - CHANGELOG [1.87.0]: leads with the first-external-contribution credit; covers #441 (GPT-5.6 Sol reviewer sweep), #443 (Sonnet 5 medium default, unbacked 5x quota claim removed, hook floor), #445/#447 (Copilot fix + regression test), #446 (Setup A semantics), #440/#442 (chores) - Version bumps at all sites found by the broad grep (v1.85.0 lesson) - ROADMAP #448 (Copilot CLI compat watch) + #449 (release-drift gate — this incident's post-mortem; scope: own-package npm-vs-main watcher) - skills/update: [1.87.0] example line; two oldest bullets trimmed to stay under the 20K session-load cap Cross-model release review: Codex xhigh (GPT-5.6 Sol), 3 rounds to CERTIFIED — caught a sed-falsified historical version citation and two unsupported duration claims in my own incident narrative. All suites green.
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Summary
gpt-5.6-sol/gpt-5.6-terra/gpt-5.6-luna) superseding GPT-5.5, verified against primary OpenAI docs. Updates the cross-model-reviewer guidance every consumer repo inherits from this one.xhigh:AI_SETUP_LANES.md,README.md,CLAUDE_CODE_SDLC_WIZARD.md, bothSKILL.mdcopies,AGENTS.md,CLAUDE.md. Historical citations (README.md:151, CLAUDE_CODE_SDLC_WIZARD.md:113) intentionally untouched — regression-tested to stay that way.max/Pro mode for unusually risky PRs inAI_SETUP_LANES.md's Final Review Policy.test-doc-consistency.sh, mutation-verified against 4 distinct swap scenarios (Sol→Terra, Terra→Luna,gpt-5.6-sol→gpt-5.6-terra, and aGPT-5.6 Sol→GPT-5.7 Solversion-bump probe) — not just an aggregate "mentions 5.6 somewhere" check.Review history
xhigh"the highest" tier); (b) the new tests only checked for the5.6substring, passing under a demonstrated Sol→Terra or Terra→Luna swap.GPT-5.6 Sol→GPT-5.7 Solmutation (checked forSolbut not5.6together) — fixed by requiring both together.Test plan
tests/test-doc-consistency.sh: 67/67, RED confirmed before edits, GREEN aftertest-persist-score-history.shfixture fragility, unrelated to this change, already tracked separately)