spec-first-brainstorming

spec-first-brainstorming is a skill for Claude Code, Codex from Dankosik/go-service-template-rest. It costs 41 tokens per session (271 once invoked), scanned A, original, MIT.

A planning skill that defines the behavior, scope, constraints, risks, owners, and proof needed for a proposed change.

In plain words
What is it for?
Use it before writing a specification to record behavior changes, boundaries, assumptions, unresolved decisions, and the next responsible owner.
Why use it?
It turns a chosen direction into a clear problem frame so later specification and implementation do not have to guess what the change means.

Skill for Claude CodeCodex

Written for Claude Code and Codex: disable-model-invocation in frontmatter, but also agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents); mentions AGENTS.md.

Good fit Use it before writing a specification to record behavior changes, boundaries, assumptions, unresolved decisions, and the next responsible owner.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dankosik/go-service-template-rest/spec-first-brainstorming
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Dankosik/go-service-template-rest --skill spec-first-brainstorming
Clone the repo
git clone --depth 1 https://github.com/Dankosik/go-service-template-rest

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for spec-first-brainstorming

README.md
[![agentmods](https://agentmods.dev/badge/skills/dankosik/go-service-template-rest/spec-first-brainstorming/github.svg)](https://agentmods.dev/skills/dankosik/go-service-template-rest/spec-first-brainstorming)
Your own site
<a href="https://agentmods.dev/skills/dankosik/go-service-template-rest/spec-first-brainstorming"><img src="https://agentmods.dev/badge/skills/dankosik/go-service-template-rest/spec-first-brainstorming/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for spec-first-brainstorming

Your own site · 80×15
<a href="https://agentmods.dev/skills/dankosik/go-service-template-rest/spec-first-brainstorming"><img src="https://agentmods.dev/badge/skills/dankosik/go-service-template-rest/spec-first-brainstorming.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 271 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00041 $0.00271
Opus 5 $0.00020 $0.00135
Sonnet 5 $0.00008 $0.00054
Haiku 4.5 $0.00004 $0.00027

Measured 6d ago against content hash 9b8f286168a2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

spec-first-brainstorming scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/spec-first-brainstorming/SKILL.md · 27 lines

What it actually says

Spec First Brainstorming

Consume the requester-meaning authority selected by Phase Selection. Return to Intake when that input is missing or leaves requester meaning unresolved.

Build the frame by reconstructing every behavior delta, scope boundary, constraint, assumption, risk, owner, and proof expectation from that authority, current contracts, and affected user/operator surfaces. Decide every technical unit yourself from current evidence and keep only a question that survives Decision Ownership, then disposition each unit as represented, preserved, decided default, open decision, external input, or blocker so Specification need not guess meaning. Load the reference selector only when one concrete pressure can change the frame, challenge routing, or readiness. Complete with the frame, readiness and challenge-routing decisions, and the named next owner.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago Changed · +14 lines 9b8f286168a2
  2. 11d ago First seen · 13 lines · 41 tokens per session scan A fe280ad0c57d

Subscribe to this mod's changes

spec-first-brainstorming is a skill published in the GitHub repository Dankosik/go-service-template-rest (7 stars, last pushed 2d ago), licensed MIT. It adds 41 tokens to every session and 271 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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