bridge CLAUDE.md

bridge CLAUDE.md is an instructions file for coding agents from noemuch/bridge. It costs 1,174 tokens per session, scanned A, original, MIT.

Project instructions for Bridge, a compiler that turns design instructions into Figma designs while enforcing a design system’s rules. They describe its Claude Code workflow, Figma connection, architecture, and preference for removing unnecessary code.

In plain words
What is it for?
Use them when modifying the Bridge compiler, Claude Code skills, Figma integration, design-system knowledge base, or related architecture and maintenance work.
Why use it?
They keep changes aligned with Bridge’s core purpose and prevent agents from bypassing the compiler’s design-system checks.

Instructions file

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 instructions/noemuch/bridge/claude-md
Clone the repo
git clone --depth 1 https://github.com/noemuch/bridge

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 bridge CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/noemuch/bridge/claude-md.svg)](https://agentmods.dev/instructions/noemuch/bridge/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/noemuch/bridge/claude-md"><img src="https://agentmods.dev/badge/instructions/noemuch/bridge/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,174 This file is loaded in full into every session.
When invoked 1,174 The same file — it is already loaded in full.
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 $0.01174 $0.01174
Opus 5 $0.00587 $0.00587
Sonnet 5 $0.00235 $0.00235
Haiku 4.5 $0.00117 $0.00117

Measured 3d ago against content hash 00e0e811b3c8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

bridge CLAUDE.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 3d 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.md · 111 lines

How it starts

The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Bridge DS — Claude Code Instructions

Mission

Bridge is a deterministic compiler that turns AI-generated design intent into Figma output guaranteed DS-compliant by construction, not by verification.

Bridge is to Figma what a type-checker is to code: the layer that catches errors at the door, not in production.

The 3 pillars

Everything Bridge does must serve one of these. Anything else is candidate for cut.

  1. Compiler-enforced correctness — 26 Figma API rules + 100% DS token compliance, deterministic
  2. Conversational UX via Claude Code skillsmake / fix / done workflow
  3. Living KB synchronized with Figma — registries refreshed via cron, drift-aware

Design principle: subtraction by default

The Bridge codebase should be smaller in 6 months, not larger.

Subtraction is the default. Every subsystem must justify its existence against the 3 pillars or die. When in doubt, cut. Adding code is a hypothesis; the burden of proof is on the addition.

Architecture

Claude Code ──CSpec YAML──> Compiler (local) ──Plugin API──> MCP ──> Figma

Key principle: Claude NEVER writes raw Plugin API code. The compiler enforces all 26 Figma API rules automatically.

MCP transports

Two transports, auto-detected. See references/transport-adapter.md for full mapping.

Operation Console (preferred) Official (fallback)
Execute code figma_execute use_figma
Screenshot figma_take_screenshot get_screenshot
DS extraction figma_get_design_system_kit Composite strategy
Variables figma_get_variables get_variable_defs
Styles figma_get_styles search_design_system
Components figma_search_components search_design_system
Connection figma_get_status whoami

Read the full file on GitHub · 111 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. 3d ago First seen · 111 lines · 1,174 tokens per session scan A 00e0e811b3c8

Subscribe to this mod's changes

bridge CLAUDE.md is an instructions file published in the GitHub repository noemuch/bridge (156 stars, last pushed 3mo ago), licensed MIT. It adds 1,174 tokens to every session, about $0.0059 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.