Borrowing it
Nothing to install: this file belongs to Postman-Devrel/postman-claude-code-plugin. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Postman-Devrel/postman-claude-code-plugin/main/CLAUDE.mdgit clone --depth 1 https://github.com/Postman-Devrel/postman-claude-code-pluginWrote 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.
[](https://agentmods.dev/instructions/postman-devrel/postman-claude-code-plugin/claude-md)<a href="https://agentmods.dev/instructions/postman-devrel/postman-claude-code-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/postman-devrel/postman-claude-code-plugin/claude-md/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.
<a href="https://agentmods.dev/instructions/postman-devrel/postman-claude-code-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/postman-devrel/postman-claude-code-plugin/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01784 | $0.01784 |
| Opus 5.5 | $0.00714 | $0.00714 |
| Sonnet 5.5 | $0.00357 | $0.00357 |
| Haiku 4.5 | $0.00178 | $0.00178 |
Grade A, and why
postman-claude-code-plugin 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
What This Is
The Postman Plugin for Claude Code — a pure-markdown, configuration-driven plugin that provides full API lifecycle management via the Postman MCP Server. No compiled code, no runtime dependencies, no build step.
Repository Structure
.claude-plugin/plugin.json # Plugin manifest (name, version, metadata)
.mcp.json # MCP server auto-config (Postman MCP at mcp.postman.com)
commands/*.md # 15 slash commands (/postman:<name>)
skills/*/SKILL.md # 11 skills (knowledge, agent-ready APIs, CLI, send-request, generate-spec, run-collection, context, and Flows: list-flows, trigger-flow, deploy-flow, get-flow-run)
skills/*/references/*.md # On-demand reference files loaded by skills only when needed
agents/readiness-analyzer.md # Sub-agent for API readiness analysis
examples/ # Sample output (readiness report)
How the Plugin Works
- Claude Code discovers components via
.claude-plugin/plugin.jsonmanifest .mcp.jsonauto-configures the Postman MCP server, providingmcp__postman__*tools. The server mode is switchable viaPOSTMAN_MCP_MODE(mcpfull/default,minimal, orcode— the latter two expose fewer tools;minimallacks the*Contextcode-gen tools)- MCP commands use the cloud Postman MCP Server — authenticate via OAuth in
/postman:setupor aPOSTMAN_API_KEYenvironment variable - Routing is native: there is no routing skill. Claude matches user intent to commands/skills from their front-matter
descriptionfields, so descriptions must state when to use the component - CLI commands use the locally installed Postman CLI (
npm install -g postman-cli) — requirespostman login - Plugin is loaded with
claude --plugin-dir /path/to/postman-claude-code-plugin
Component Conventions
Commands (commands/*.md): YAML front matter with description and allowed-tools. Each defines a structured workflow invoked as /postman:<name>.
- MCP commands: setup, sync, search, test, mock, docs, security, learn (learn requires Full mode —
searchLearningCenteris absent inminimal/code) - CLI commands: request, generate-spec, run-collection, list-flows, trigger-flow, deploy-flow, get-flow-run
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.
- 1mo ago First seen · 84 lines · 1,784 tokens per session scan A 7fcbd8ca5f64
postman-claude-code-plugin CLAUDE.md is an instructions file published in the GitHub repository Postman-Devrel/postman-claude-code-plugin (41 stars, last pushed 21d ago), licensed Apache-2.0. It adds 1,784 tokens to every session, about $0.0071 per session on Opus 5.5. 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
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).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.