blueprint

blueprint is a command for Claude Code from Zts0hg/codexspec. It costs 11 tokens per session (1,318 once invoked), scanned A, original, MIT.

A command for discussing and maintaining confirmed product requirements in one shared product blueprint.

In plain words
What is it for?
It is for discovering or updating a requirement, confirming it, and maintaining the project's shared blueprint.
Why use it?
It keeps agreed requirements in a central document and prevents the discussion step from being mixed with implementation work.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter.

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.

agentmods
npx agentmods add commands/zts0hg/codexspec/blueprint
Clone the repo
git clone --depth 1 https://github.com/Zts0hg/codexspec

Made for: Claude Code.

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 blueprint

README.md
[![agentmods](https://agentmods.dev/badge/commands/zts0hg/codexspec/blueprint.svg)](https://agentmods.dev/commands/zts0hg/codexspec/blueprint)
Your own site
<a href="https://agentmods.dev/commands/zts0hg/codexspec/blueprint"><img src="https://agentmods.dev/badge/commands/zts0hg/codexspec/blueprint.svg" alt="Measured on agentmods" height="20"></a>
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,318 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00011 $0.01318
Opus 5 $0.00005 $0.00659
Sonnet 5 $0.00002 $0.00264
Haiku 4.5 $0.00001 $0.00132

Measured 2d ago against content hash a51c05fce7cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

blueprint 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 2d 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.

.claude/commands/codexspec/blueprint.md · 129 lines

How it starts

The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Blueprint Requirements Discovery

Language Preference

Read .codexspec/config.yml. Two independent language controls apply (each falls back to language.output, then English):

  • Interaction language (language.interaction): language for all conversation with the user.
  • Document language (language.document): language for requirements Markdown sent to the helper.

Converse in the interaction language and author requirement content in the document language. Use clear, standard software-development terminology; do not invent abbreviations to summarize concepts.

User Input

$ARGUMENTS

Goal

Discuss and confirm one new requirement, or maintain one existing pending requirement, in the single shared .codexspec/blueprint.md. This command never creates a feature directory, changes a development status, or starts SDD development.

Shared Workspace

  1. Run codexspec _blueprint-helper inspect --ensure from the invoking repository.
  2. Use only the returned worktree and blueprint. Never read or edit a blueprint copy in the caller checkout, and never write .codexspec/blueprint.md directly.
  3. Retain the returned blueprint_hash for one helper mutation request.
  4. Read .codexspec/memory/constitution.md, all constraints and relevant records under .codexspec/profile/, relevant implemented features under .codexspec/specs/, and every current blueprint block before discussing or changing a requirement.

Allowed Work

  • Append one newly confirmed requirement as the last pending block.
  • Replace the complete agent-authored Markdown of one pending block while preserving its Feature ID.
  • Delete one pending block after explicit confirmation.
  • Move one pending block to the first/last pending position or before/after another pending block.
  • View in_progress and completed blocks as context. Never modify, delete, or move them.

Blueprint order is implementation order. Resolve prerequisites and requested reordering here; do not add priorities, dependency metadata, or scheduling behavior.

Read the full file on GitHub · 129 lines

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. 2d ago First seen · 129 lines · 11 tokens per session scan A a51c05fce7cb

Subscribe to this mod's changes

blueprint is a command published in the GitHub repository Zts0hg/codexspec (5 stars, last pushed 4d ago), licensed MIT. It adds 11 tokens to every session and 1,318 once invoked, about $0.0001 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 2026-09-03.