ci(cursor-review): bump panel to latest per-lab reasoning tiers (GPT-5.6 Sol, Opus 4.8 max)

[mattmillerai]

ELI-5

The 4-model review panel was pinned to models from a few releases ago. This bumps each lane to the newest, highest-reasoning model its lab currently offers in Cursor's catalog, so PR reviews come from the best available reviewers.

What changed

Lane	Before	After
OpenAI	gpt-5.3-codex-xhigh	gpt-5.6-sol-max
Anthropic (panel + judge default)	claude-opus-4-8-thinking-xhigh	claude-opus-4-8-thinking-max
Google	gemini-3.1-pro	unchanged (still the only Pro-line entry)
Moonshot	kimi-k2.7-code	unchanged (still the only Kimi entry)

Also syncs the panel table in the cursor-review README and the model-name examples in the judge prompt, and rewrites the matrix comment with the selection rationale and a last-checked date.

Selection notes

1. GPT-5.6 Sol is OpenAI's stated coding flagship of the 5.6 family; the catalog has no 5.6 codex variant, so Sol max replaces Codex 5.3 xhigh as the top OpenAI reasoning tier.
2. Fable 5 deliberately excluded: it tops Cursor's Anthropic catalog, but every Fable entry is marked NO ZDR (no zero-data-retention). This panel reviews diffs from non-public repos, so lanes must stay on ZDR-eligible models. Opus 4.8 thinking at its new max tier is the top eligible pick.
3. max vs xhigh: the panel's contract is "highest reasoning tier available per lab." Max tiers think longer; if cells start brushing the 30-minute timeout on large diffs, the fallback is the xhigh tier one notch down.

Validation

1. actionlint clean.
2. Both new model IDs validated with live cursor-agent --model <id> -p calls (both respond correctly) — guarding against the pin-a-nonexistent-ID failure mode this file has hit before.
3. Merging this triggers the caller SHA-bump fan-out; the resulting bump PRs in consumer repos are expected.

🤖 Generated with Claude Code

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Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: d3144ffe-300b-4cf5-9652-c934625da855

📥 Commits

Reviewing files that changed from the base of the PR and between df507e6 and d6b585a.

📒 Files selected for processing (3)

• .github/cursor-review/README.md
• .github/cursor-review/prompt-judge.md
• .github/workflows/cursor-review.yml

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch ci/bump-panel-models-2026-07

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch ci/bump-panel-models-2026-07

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