second-opinion

Use when you want an independent second opinion from a different AI model (OpenAI Codex CLI).

IndexedLicense unknown

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/cmillstead-second-opinion

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Use when you want an independent second opinion from a different AI model (OpenAI Codex CLI). Three modes: review (pass/fail gate on a plan or diff), challenge (adversarial — actively tries to break your code), and consult (open-ended question to a different model). Use after /review for cross-model coverage, or during Phase 4 planning for independent plan validation. Requires Codex CLI installed: npm install -g @openai/codex

Use cases: testing, agent-building

Reviews

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools: No tools found
Secrets: None asked for
Install scripts: None found
Runs as: Python package

Network hosts it talks to 1

codeload.github.com · found in install command

Files it touches

~/.claude/skills/second-opinion

What's inside

Skill name: second-opinion
Description: Use when you want an independent second opinion from a different AI model (OpenAI Codex CLI). Three modes: review (pass/fail gate on a plan or diff), challenge (adversarial — actively tries to break your code), and consult (open-ended question to a different model). Use after /review for cross-model coverage, or during Phase 4 planning for independent plan validation. Requires Codex CLI installed: npm install -g @openai/codex
License: unknown
Instructions: 197 lines in SKILL.md · view on GitHub

Before installing

Ships executable scripts

Files (46)

SKILL.md
codex-learnings-digest.md
codex-learnings-review-digest.md
20260624-062659-64a5-test-fixture-no-route-vacuous.md · codex-learnings.d/
20260624-062659-dac1-cfgtest-as-production-path.md · codex-learnings.d/
20260624-193512-0b37-rowcount-write-nonunique-key.md · codex-learnings.d/
20260626-201509-c406-typed-key-cast-throws-before-fallback.md · codex-learnings.d/
20260701-133000-0f84-dedup-jobid-retained-on-failure.md · codex-learnings.d/
20260701-133000-a35d-role-migration-revoke-stale-grants.md · codex-learnings.d/
20260702-060939-19b2-early-return-shadows-required-gate.md · codex-learnings.d/
20260702-184931-0bb9-whole-object-pin-missing-keyset.md · codex-learnings.d/
20260723-170559-5689-self-heal-migration-schema-shape.md · codex-learnings.d/
20260725-034000-9f2c-dual-resolution-policy-one-input.md · codex-learnings.d/
20260729-051257-b016-vacuous-assertion.md · codex-learnings.d/
20260805-035925-fa2a-correction-introduces-unverified-claims.md · codex-learnings.d/
20260806-023926-0636-literal-scan-misses-var-pairs.md · codex-learnings.d/
20260823-211710-22a7-user-args-override-daemon-args.md · codex-learnings.d/
README.md · codex-learnings.d/_graduated/
c01-single-gate-path-trust.md · codex-learnings.d/_graduated/
_header.md · codex-learnings.d/
c02-sentinel-semantics-reject.md · codex-learnings.d/
c03-ci-venv-missing.md · codex-learnings.d/
c04-lossy-stash-invariant.md · codex-learnings.d/
c05-test-hermeticity.md · codex-learnings.d/
c10-command-grammar-completeness.md · codex-learnings.d/
c11-select-threading-alternative-score.md · codex-learnings.d/
c12-concurrency-lock-ttl.md · codex-learnings.d/
c13-default-flip-side-branches.md · codex-learnings.d/
c14-allowlist-flag-hardening.md · codex-learnings.d/
c15-migration-parity-schema.md · codex-learnings.d/
c16-tenant-isolation-fk-scope.md · codex-learnings.d/
c17-path-equality-segment-aligned.md · codex-learnings.d/
c18-metric-granularity-mismatch.md · codex-learnings.d/
c19-dead-arm-dispatch.md · codex-learnings.d/
p01-phantom-symbol.md · codex-learnings.d/
p02-wrong-api-shape.md · codex-learnings.d/
p03-stale-command.md · codex-learnings.d/
p04-wrong-identifier.md · codex-learnings.d/
p30-helper-reuse-body.md · codex-learnings.d/
p31-none-sentinel-aggregate.md · codex-learnings.d/
p32-negative-existence-claim.md · codex-learnings.d/
p33-ambiguity-over-deny.md · codex-learnings.d/
codex-learnings.md
reference.md
build-digest.py · scripts/
test_build_digest.py · scripts/

The license isn't open source, so the instructions aren't shown here. Read SKILL.md on GitHub

Signals

Stars: 0
Forks: 0
Open issues: 1
Last commit (this folder): Sep 2, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

License: License unknown
Repository: github.com/cmillstead/coding-team
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: GitHub github-graphql

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Cite this page

second-opinion skill. Agent Mart. https://agentmart.dev/skills/cmillstead-second-opinion (last updated 2026-10-24)