What is blueprint-mcp AGENTS.md?

Project instructions for an AI agent working on the railsblueprint/blueprint-mcp codebase. They explain how to use Beads, a command-line issue tracker that stores dependency-aware work items in version control.

Use them when handling issues in this repository, including finding ready work, creating and updating tasks, recording dependencies, and closing completed work.

They prevent agents from creating a second, conflicting task-tracking system. They also define the project’s issue types, priorities, and basic workflow.

How railsblueprint/blueprint-mcp configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to railsblueprint/blueprint-mcp. 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/railsblueprint/blueprint-mcp/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/railsblueprint/blueprint-mcp

Made for: Codex, OpenCode.

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/instructions/railsblueprint/blueprint-mcp/agents-md.svg)](https://agentmods.dev/instructions/railsblueprint/blueprint-mcp/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/railsblueprint/blueprint-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/railsblueprint/blueprint-mcp/agents-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 760 This file is loaded in full into every session.

When invoked 760 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00760	$0.00760
Opus 5	$0.00380	$0.00380
Sonnet 5	$0.00152	$0.00152
Haiku 4.5	$0.00076	$0.00076

Measured 8d ago against content hash 2c519584ea52, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

blueprint-mcp AGENTS.md 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.

AGENTS.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI Agent Guidelines

This document provides guidelines for AI agents working with this codebase.

Issue Tracking with bd (beads)

IMPORTANT: This project uses bd (beads) for ALL issue tracking. Do NOT use markdown TODOs, task lists, or other tracking methods.

Why bd?

Dependency-aware: Track blockers and relationships between issues
Git-friendly: Auto-syncs to JSONL for version control
Agent-optimized: JSON output, ready work detection, discovered-from links
Prevents duplicate tracking systems and confusion

Quick Start

Check for ready work:

bd ready --json

Create new issues:

bd create "Issue title" -t bug|feature|task -p 0-4 --json
bd create "Issue title" -p 1 --deps discovered-from:bd-123 --json

Claim and update:

bd update bd-42 --status in_progress --json
bd update bd-42 --priority 1 --json

Complete work:

bd close bd-42 --reason "Completed" --json

Issue Types

bug - Something broken
feature - New functionality
task - Work item (tests, docs, refactoring)
epic - Large feature with subtasks
chore - Maintenance (dependencies, tooling)

Priorities

0 - Critical (security, data loss, broken builds)
1 - High (major features, important bugs)
2 - Medium (default, nice-to-have)
3 - Low (polish, optimization)
4 - Backlog (future ideas)

Workflow for AI Agents

Check ready work: bd ready shows unblocked issues
Claim your task: bd update <id> --status in_progress
Work on it: Implement, test, document
Discover new work? Create linked issue:
- bd create "Found bug" -p 1 --deps discovered-from:<parent-id>
Complete: bd close <id> --reason "Done"
Commit together: Always commit the .beads/issues.jsonl file together with the code changes so issue state stays in sync with code state

Auto-Sync

bd automatically syncs with git:

Exports to .beads/issues.jsonl after changes (5s debounce)
Imports from JSONL when newer (e.g., after git pull)
No manual export/import needed!

Read the full file on GitHub · 104 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.

8d ago First seen · 104 lines · 760 tokens per session scan A 2c519584ea52

Subscribe to this mod's changes

blueprint-mcp AGENTS.md is an instructions file published in the GitHub repository railsblueprint/blueprint-mcp (99 stars, last pushed 28d ago), licensed Apache-2.0. It adds 760 tokens to every session, about $0.0038 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 2026-08-30.

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Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

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blueprint-mcp: Instructions file for Codex