review
Adversarial senior review of the spec before any code is written.
Skill by JuliusBrussee
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/juliusbrussee-review
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About
Use cases: research
Reviews
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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
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Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/review
What's inside
- Skill name
review- Description
- Adversarial senior review of the spec before any code is written. Constructs a skeptical reviewer whose authority comes from the codebase, §R research, and live best-practice — then tries to REFUTE the spec, not rubber-stamp it. Every finding cites evidence (file:line or source); unverifiable ones are flagged. Survivors harden §V; the run ends in an explicit go / no-go gate. Triggers before building anything high-blast-radius, when the user says "review the spec", "red-team this", "is this plan sound", "senior review", or invokes /ck:review.
- License
- MIT
- Instructions
- 74 lines in SKILL.md · view on GitHub
Files (1)
- SKILL.md
SKILL.md (first lines)
# review — refute the spec before build **Every finding cites evidence — file:line or a source. No evidence → flag `[unverified]`. Default to refuted: a flaw you cannot prove is a flaw you note, not one you wave through.** An LLM cannot self-correct on its own judgment — left alone it drifts or degrades. Review fixes that the only way that works: a *separate* skeptic anchored to an *external oracle* — the code, §R, the test suite, the docs. "Looks good" is not a review. A refutation attempt is. ## WHEN TO REVIEW - Before `/build` on a high-blast-radius change (shared module, auth, data, money, public API). - Spec touched §I or §V that other code depends on. - Right-sizing says the cost of a wrong build > the cost of one review pass. Skip for a trivial, reversible, well-understood change. Adversarial review on a typo hallucinates flaws & wastes the budget — the self-critique paradox is real. ## PHASE 0 — CAPTURE Read the spec: §G §C §I §R §V §T. Hold the whole thing. You review the *spec*, not your memory of the conversation. ## PHASE 1 — CONSTRUCT THE SENIOR Build a reviewer with real authority, not a generic critic: - **Codebase** — grep/read the modules this spec touches. What patterns, what invariants already hold? - **§R** — what did research establish? A spec decision that contradicts §R is a finding. - **Live** — for any best-practice claim you are unsure of, fetch it. An out-of-date assumption is a flaw. A reviewer with no evidence is just an opinion. Earn the authority first. ## PHASE 2 — REFUTE Attack the spec on these axes. For each, try to find the case where it breaks: - **Goal vs reality** — does §G solve the actual problem, or a proxy? - **Missing invariant** — what can go wrong that no §V catches? (most findings live here) - **Interface drift** — does §I match what callers already expect? (cite the caller, file:line) - **Constraint conflict** — do two §C bullets contradict? does one fight §R? - **Unowned edge** — the input, ordering, failure, or concurrency case no §T covers. - **Altitude** — §T too vague to act on, or so granular it is just typing? ## PHASE 3 — CLASSIFY Each finding: `evidence → claim → severity`. - **BLOCK** — build on this spec ships a real defect. Must fix first. - **HARDEN** — add/sharpen a §V so the build cannot regress it. - **NOTE** — worth knowing, not blocking. No evidence? Down-rank to NOTE & tag `[unverified]`. ⊥ inflate a hunch to BLOCK. ## PHASE 4 — HARDEN §V & GATE - Each HARDEN finding → a draft §V line (testable, cites the §I/behavior it guards). Hand to **spec** to write. - End on an explicit gate: ``` ## review verdict BLOCK: 1 — §I.api shape ≠ caller src/client.ts:40. fix §I before build. HARDEN: 2 — drafted V8 (idempotent refund), V9 (tx around dual write). NOTE: 1 — §T4 vague, split before /build. gate: NO-GO until BLOCK cleared. then /build §T after spec writes V8,V9. ``` GO or NO-GO, never a shrug. Review is the checkpoint that stops a confident wrong build. ## BOUNDARIES - ⊥ write SPEC.md. Draft §V & hand to spec. - ⊥ pass a finding with no evidence as fact. Flag `[unverified]`. - ⊥ review trivia. Right-size or skip. - ⊥ rewrite the user's intent. You harden the spec, you do not replace its goal.
From JuliusBrussee/cavekit, MIT.
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- 0.719score
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Create, amend, or backprop bugs into SPEC.md at repo root.
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Calibrated interrogation of a fuzzy idea before it becomes a spec.
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deepen
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Optional design-improvement pass for when you have spare usage to drain.
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build
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Plan-then-execute implementation against SPEC.md.
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check
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Read-only drift detector.
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backprop
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Bug → spec protocol.
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caveman
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Caveman encoding for SPEC.md and spec-adjacent writes.
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Signals
- Stars
- 1,157
- Forks
- 89
- Open issues
- 12
- Last commit (this folder)
- Jun 18, 2026 (4 months ago)
- Last release
- Apr 18, 2026 (6 months ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- MIT
- Repository
- github.com/JuliusBrussee/cavekit
- Website
- caveman.so/
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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Cite this page
review skill. Agent Mart. https://agentmart.dev/skills/juliusbrussee-review (last updated 2026-10-24)