grill-me-mateo
Grill me on a plan or change before I write code, but with my canonical four questions baked in — package boundary, error code, vertical slice, ADR.
Skill by mateonunez
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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/mateonunez-grill-me-mateo
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 cases: testing, writing
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
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/grill-me-mateo
What's inside
- Skill name
grill-me-mateo- Description
- Grill me on a plan or change before I write code, but with my canonical four questions baked in — package boundary, error code, vertical slice, ADR. Use when the user says "grill me", "stress-test this", or before starting a non-trivial feature in ait, mateonunez.co, or any repo set up via setup-mateonunez-skills.
- License
- MIT
- Instructions
- 14 lines in SKILL.md · view on GitHub
Files (1)
- SKILL.md
SKILL.md (first lines)
# Grill me (Mateo edition) Interview me about the change relentlessly until every branch of the design tree is resolved. Ask one question at a time. Don't accept hand-wave answers — re-grill until the answer is concrete. Always cover these four before letting me start: 1. **Package boundary.** Which workspace package owns this? If "shared", what's the third caller justifying it? See [`vertical-slices`](../../engineering/vertical-slices/SKILL.md). 2. **Error code.** What can fail, and what `code` does each failure get on the `AItError` (or domain equivalent)? See [`result-not-throw`](../../engineering/result-not-throw/SKILL.md). 3. **Vertical slice.** Is this a new slice or a deepening of an existing one? If new, name the package; if deepening, name the file. 4. **ADR.** Does this decision need an ADR in `docs/adr/`? If the answer is "maybe", it's a yes — write the ADR before the code. Then carry on with the rest of the grilling — data shape, test seam, boundary code, deployment surface, rollback. Don't stop until I'm bored of answering.
From mateonunez/skills, MIT.
More from mateonunez/skills
- 0.536score
result-not-throw
mateonunez
I return Result<T, E extends Error> from business logic — never throw.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
code-review
mateonunez
Review a diff or PR against my conventions — Result not throw, vertical slices, AItError codes, node:test, Biome, entity normalisation, a11y.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
entity-normalization
mateonunez
When data crosses a system boundary into my code, I normalise it into a typed entity with a __type discriminator and a fixed common shape.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
fastify-plugin-shape
mateonunez
How I write Fastify plugins — fastify-plugin wrapper, idempotency guard, decorator pattern, withX() helper for TS narrowing, module augmentation.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
node-native-tests
mateonunez
I use node:test + borp + c8, not Jest or Vitest.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
setup-mateonunez-skills
mateonunez
Scaffold the per-repo conventions my other engineering skills assume — pnpm + corepack, Biome (1.9 legacy or 2.x new), node:test posture, CONTEXT.md, docs/adr/.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
single-tool-per-job
mateonunez
Biome is enough.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
vertical-slices
mateonunez
I organise code by feature, not by layer.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
production-observability
mateonunez
Include error telemetry, request context, and queue visibility in production code.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
prototyping
mateonunez
Build a throwaway prototype to flush out a design before committing.
SkillCFreshness: C★ 8Claude Code +9 - 0.535score
fastify-orama
mateonunez
Knowledge pack for fastify-orama — a Fastify plugin that integrates Orama full-text search with persistence support.
SkillCFreshness: C★ 8Claude Code +9 - 0.511score
improve-codebase-arch
mateonunez
Find deepening opportunities in a codebase, informed by domain language in CONTEXT.md and decisions in docs/adr/.
SkillCFreshness: C★ 8Claude Code +9
Signals
- Stars
- 8
- Forks
- 0
- Open issues
- 0
- Last commit (this folder)
- Jul 21, 2026 (3 months ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- MIT
- Repository
- github.com/mateonunez/skills
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
More from mateonunez
- 0.536score
code-review
mateonunez
Review a diff or PR against my conventions — Result not throw, vertical slices, AItError codes, node:test, Biome, entity normalisation, a11y.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
entity-normalization
mateonunez
When data crosses a system boundary into my code, I normalise it into a typed entity with a __type discriminator and a fixed common shape.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
result-not-throw
mateonunez
I return Result<T, E extends Error> from business logic — never throw.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
production-observability
mateonunez
Include error telemetry, request context, and queue visibility in production code.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
prototyping
mateonunez
Build a throwaway prototype to flush out a design before committing.
SkillCFreshness: C★ 8Claude Code +9 - 0.536score
fastify-plugin-shape
mateonunez
How I write Fastify plugins — fastify-plugin wrapper, idempotency guard, decorator pattern, withX() helper for TS narrowing, module augmentation.
SkillCFreshness: C★ 8Claude Code +9
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grill-me-mateo skill. Agent Mart. https://agentmart.dev/skills/mateonunez-grill-me-mateo (last updated 2026-10-24)