A specification-writing tool that turns ideas, notes, documents, or conversations into a clear contract for building software. It records the reason for the work, capabilities, limits, exclusions, and signs of success.

Use it to create or update a software specification, validate one, or split it into development stories.

It turns scattered intent into a shared reference that later development work can follow.

How 2233admin/design-pipeline configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to 2233admin/design-pipeline. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/2233admin/design-pipeline/main/.agents/skills/bmad-spec/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/2233admin/design-pipeline

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/2233admin/design-pipeline/bmad-spec.svg)](https://agentmods.dev/skills/2233admin/design-pipeline/bmad-spec)

Your own site

<a href="https://agentmods.dev/skills/2233admin/design-pipeline/bmad-spec"><img src="https://agentmods.dev/badge/skills/2233admin/design-pipeline/bmad-spec.svg" alt="Measured on agentmods" height="20"></a>

Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,867 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 88% copy Near-identical to another mod 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.

Model	Per session	Once invoked
Fable 5.1	$0.00063	$0.03867
Opus 5	$0.00032	$0.01934
Sonnet 5	$0.00013	$0.00773
Haiku 4.5	$0.00006	$0.00387

Measured 8d ago against content hash 5b5680dbf01d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

bmad-spec 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 8d 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.

Origin

This is a copy

88% identical to bmad-spec — 21 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/bmad-spec/SKILL.md · 161 lines

How it starts

The opening of the file, as written. The whole thing — 161 lines — stays where its author put it; the contents beside it link to each section on GitHub.

BMad Spec

Overview

Canonical transformer for the BMad spec-kernel ecosystem. Takes any intent input — vague idea, brain dump, PRD, GDD, RFC, brief, Slack thread, customer email, meeting transcript, mockups, mixed multi-source — and produces SPEC.md carrying the five-field kernel (Why, Capabilities, Constraints, Non-goals, Success signal) plus companion files for load-bearing content that does not fit or would bloat the kernel with expansive line-item detail. Together they are the machine contract every downstream BMad skill consumes.

Multiple skills may call to update the same spec over time.

Conventions

Bare paths (e.g. assets/spec-template.md) resolve from the skill root.
{skill-root} is this skill's install dir; {project-root} is the working dir.
{workflow.<name>} resolves to fields in customize.toml.

On Activation

Resolve customization: uv run {project-root}/_bmad/scripts/resolve_customization.py --skill {skill-root} --key workflow. On failure, read {skill-root}/customize.toml directly.
Run {workflow.activation_steps_prepend}. Treat {workflow.persistent_facts} as foundational context (file: entries are loaded).
Resolve config: uv run {project-root}/_bmad/scripts/resolve_config.py --project-root {project-root} (merges _bmad/config.toml, _bmad/config.user.toml, and the _bmad/custom/ overrides). From the merged JSON resolve {user_name}, {communication_language}, {document_output_language}, {project_name}, {output_folder} (under core), and {date}.
Detect mode. Headless when any of: no TTY, programmatic caller (another skill or non-interactive runner), or the first message pre-supplies all inputs and asks for an artifact path back. Interactive otherwise. In interactive mode, greet by {user_name} in {communication_language}, stay in that language, and mention that bmad-party-mode and bmad-advanced-elicitation are available for deeper exploration on any field.

Run {workflow.activation_steps_append}.

Read the full file on GitHub · 161 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

8d ago First seen · 161 lines · 63 tokens per session scan A 5b5680dbf01d

Subscribe to this mod's changes

bmad-spec is a skill published in the GitHub repository 2233admin/design-pipeline (9 stars, last pushed 5d ago), licensed MIT. It adds 63 tokens to every session and 3,867 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to bmad-spec, differing in 21 lines, and is treated as a copy.

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design-pipeline: Skill for Claude Code