Grill AI Mastery

Probe AI mastery by what the subject names, not by how much they generate. The premise from the chat that prompted this skill: token usage and LOC are noise; concrete tip vocabulary (URL-as-entity-ref, loop closure, observability) is signal.

Mode disambiguation

This skill is the AI-mastery anchor; grill-me is the domain-agnostic version. Pick by what's being assessed.

Phase 1 — Collaborative tip-sharing

Open by asking the subject to name a tip they actually use when collaborating with an LLM. Two-way: surface one of yours back as a counter-tip. The exchange is the assessment, not a quiz. Watch for:

• Concrete protocol names (URL-as-entity-ref, AGENTS.md, MCP resources, structured outputs) versus generic platitudes ("I write good prompts").
• Direction-of-travel signals — does the subject describe loops, observability, anchored references? Or do they describe vibes, screenshots, "the function we discussed"?
• Self-correction — when the subject reaches for a vague handle, do they catch themselves and produce a URL?

Stay collaborative as long as the depth matches the level the assessment is calibrated to.

Phase 2 — Adversarial probe (escalation)

Promote to adversarial questioning when any of these signals fire:

• Vague answers — "I just use it normally" / "good prompts" / "I check the output" with no protocol name attached.
• Token-usage / LOC framing — the explicit anti-pattern from the chat that prompted this skill. Surface the rejection: "those measure quantity, not capability. What do you actually do that someone less skilled does not?"
• Inability to name three protocols — when prompted directly, cannot produce three concrete tactics with a why for each.
• Unanchored entity references in the conversation itself — the subject says "the PR" / "that bug" without offering a URL.

In adversarial mode, walk the tip-vocabulary tree:

1. Entity referencing — how do you point at an entity so a future session can find it? (Looking for: URL permalinks, MCP resources, file:line, symbol paths.)
2. Durable references — where does the next session start? (Looking for: PR comment threads, AGENTS.md, structured logs — not chat memory.)
3. Loop closure — when work needs N iterations, what does the inner loop look like and where is the human? (Looking for: CLI triggers, file outputs, contract assertions, human at the outer loop only.)
4. Harness improvement — what do you do when the loop cannot close? (Looking for: trap-or-abandon — improve the harness, do not babysit.)

Recommend per the AskUserQuestion contract below — mark the option with (Recommended) and place it first. The recommendation gives the subject a calibration point without grading on a hidden rubric.

AskUserQuestion tool contract (Claude Code reference)

This protocol assumes a single "ask user" tool with the contract below. Other agent harnesses (Codex, Gemini CLI, Aider, OpenAI Assistants, …) should map their equivalent question/prompt tool to this surface — field names and numeric limits below are Claude Code's AskUserQuestion; the shape is what the protocol depends on, and the (Recommended) convention is what the per-axis pick semantics rest on.

Antipattern: override-checklist UI [LOAD-BEARING]

Bad shape — never generate this:

Which of these defaults should I override before I lock in the plan?
❯ 1. [ ] Diff-only mode
  2. [ ] Include root prompts
  3. [ ] system-prompt-baseline.md wins on conflict
  4. [ ] Bump plugin manifests

This is a single multiSelect: true question where unticked = "default stands". It collapses four independent axes into one checkbox list. Never generate this shape.

Correct shape — one single-select question per axis:

Q1 — Scope (single-select)
❯ Diff-only mode (Recommended) — propagate only recently-new baseline
  Full block alignment — full sweep across all blocks

Q2 — Roots (single-select)
❯ Skip root prompts (Recommended) — derivative artifacts
  Include root prompts — also touch ODD/{GENERIC,COMPACTED,MINIMAL}

Q3 — Conflict policy (single-select)
❯ Preserve target policy (Recommended) — non-conflicting only
  system-prompt-baseline.md wins — override divergent target policy

Q4 — Manifests (single-select)
❯ Skip bump (Recommended) — sibling-harness scope
  Bump minor — semver per system-prompt-baseline.md memory note

Positive routing rule: When the brief calls for the user to rarely have to type, route the intent into N per-axis single-select questions (≤4 per fire) — each axis's (Recommended) option carries the default. Ticking (Recommended) is accepting the default.

Never use multiSelect for axis-with-default override semantics. Reserve multiSelect strictly for additive picks (feature toggles, optional sub-tasks).

Per fire (one tool call):

• questions array — minItems: 1, maxItems: 4. All questions in the array render as one batched UI; one user round-trip per fire.

Per question:

• question — full sentence ending in ?
• header — short chip label, ≤ 12 characters
• multiSelect — boolean (default false). false = single-pick (mutually exclusive options); true = subset of additive items (feature toggles, optional sub-tasks)
• options — array, minItems: 2, maxItems: 4

Per option:

• label — 1-5 words; the chip text the user sees and ticks. Mark the recommended choice by appending (Recommended) to its label and placing it first in the array.
• description — explanation of the trade-off / consequence; the one-sentence rationale lives here.
• preview — optional rendered content (markdown, monospace box). Single-select only (tool constraint). Use for visual comparisons (layout mockups, code diffs, file trees); skip when the difference is purely conceptual.

Built-in escapes (do not duplicate):

• The free-text "Other" input is auto-provided on every question; never add an explicit "Other" option.
• Users may attach free-text notes via the annotations response field.

Plan-mode caveat:

• Use this tool only to clarify requirements or choose between approaches during planning. Do not ask "Is the plan ready?" / "Should I proceed?" — that's what ExitPlanMode is for.

Stop conditions

• Tree is walked end-to-end with substantive answers per fork.
• A blocking gap surfaces — the subject lacks a basic protocol vocabulary; halt and recommend ai-collab-protocols as a starting point rather than continuing the probe.
• Subject converges with the assessor — depth matches; no further probing changes the verdict.

Anti-patterns to flag in the subject

• Token usage as a proxy for skill — already named above; reject and redirect.
• LOC as productivity — comments-as-LOC is the running joke of the source chat; treat as the tell that the subject does not yet think in protocols.
• "Mindless automation eats the most tokens" — paraphrase from the chat. If the subject argues automation is the high-skill move, probe whether they distinguish open-observability autonomous loops from babysat scripts.

Tab-complete note

grill-ai-mastery and grill-me share the grill- prefix and will tab-complete adjacent. Both exist intentionally: grill-me for general design grilling, this skill for AI-collab assessment specifically. Confirm with the user which they meant when invocation is ambiguous.