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Turn a vague idea into an approved, written spec before any code is written. Use before building a feature, adding functionality, or changing behavior — whenever the work is more than a trivial mechanical edit and the requirements aren't already pinned down.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Query forge's live, always-fresh code map — a dependency graph of the repo with god-nodes, modules, and neighbors/impact (blast-radius) queries. Use before editing to know what depends on a file, to find the most-depended-on hotspots, to map an unfamiliar codebase's architecture, or whenever you need current structural context instead of guessing.
Build an accurate mental map of unfamiliar code before changing it. Use when starting work in a codebase or area you don't know well, before editing code whose ripple effects you can't predict, or when the user asks how something works or where something lives.
Design the shape of a non-trivial module, API, or system before implementing it. Use when a design decision has more than one reasonable answer, when introducing a new abstraction or interface, or when getting the shape wrong would be expensive to undo.
Find the root cause of a bug, test failure, or performance regression before proposing any fix. Use the moment something is broken, throwing, failing, flaky, or slower than expected — and resist the urge to patch first.
Build or redesign frontend UI that doesn't look templated or AI-generated. Use when creating components, pages, landing pages, or restyling existing UI — before writing CSS/markup, and before shipping any visual work.
Measure non-deterministic behavior — LLM features, agents, prompts, or a skill itself — with repeatable evals instead of one-shot checks. Use when building or tuning AI/LLM functionality (ranking, extraction, generation, agent loops), when a feature could pass once by luck, or when validating that a prompt or skill actually changes behavior.
| name | brainstorm |
| description | Turn a vague idea into an approved, written spec before any code is written. Use before building a feature, adding functionality, or changing behavior — whenever the work is more than a trivial mechanical edit and the requirements aren't already pinned down. |
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Most failed work isn't bad code — it's the wrong thing built confidently. This skill closes the gap between what the user said and what they meant, before a line is written.
Do not write implementation code, edit files, or jump to a plan until the user has approved a written spec. This gate is the whole point — it's the cheapest place to be wrong. When you think "this is simple enough to just build," that's exactly when a 2-minute spec saves an hour.
Present the spec in digestible sections — problem, scope, approach, risks & assumptions (a 30-second pre-mortem: "assume this shipped and failed; top 2-3 reasons"), what's explicitly out of scope, and success criteria — and get sign-off section by section, not as one giant block.
"Approved" is mechanical, not inferred. Approval = the user affirmatively says yes to the section you explicitly presented. Silence, an "ok" aimed at something else, a fresh question, or a topic change is not approval — if unsure, ask "Approve this section?" verbatim and wait. Assuming consent from a non-answer is the rationalization this gate exists to forbid.
Write the approved spec to a file (e.g. docs/specs/<feature>.md, or as the header of the plan) so forge:plan consumes an artifact, not scrollback — durable facts belong in files, not fragile conversation memory. Then hand off to forge:plan, not directly to coding. Brainstorm decides what and why; plan decides the steps.