Borrowing it
Nothing to install: this file belongs to jsegov/shipspec-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/jsegov/shipspec-claude-code-plugin/main/CLAUDE.mdgit clone --depth 1 https://github.com/jsegov/shipspec-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/jsegov/shipspec-claude-code-plugin/claude-md)<a href="https://agentmods.dev/instructions/jsegov/shipspec-claude-code-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/jsegov/shipspec-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/jsegov/shipspec-claude-code-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/jsegov/shipspec-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 | $0.01978 | $0.01978 |
| Opus 5.5 | $0.00791 | $0.00791 |
| Sonnet 5.5 | $0.00396 | $0.00396 |
| Haiku 4.5 | $0.00198 | $0.00198 |
Grade A, and why
shipspec-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 — 218 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.
Project Overview
ShipSpec is a Claude Code plugin for spec-driven feature development. It replaces vague plans with structured PRDs (Product Requirements Documents), SDDs (Software Design Documents), and ordered tasks with acceptance criteria.
Plugin Architecture
shipspec/
├── commands/ # User-invocable slash commands
│ ├── feature-planning.md # 7-phase planning workflow
│ ├── implement-task.md # Single task implementation with verification
│ ├── implement-feature.md # Full feature implementation loop
│ ├── cancel-task-loop.md # Cancel active task retry loop
│ └── cancel-feature-retry.md
├── agents/ # Specialized subagents (Task tool invocations)
│ ├── prd-gatherer.md # Requirements elicitation
│ ├── design-architect.md # Technical design decisions
│ ├── task-planner.md # Task decomposition
│ ├── task-manager.md # TASKS.json parsing/validation/status updates
│ ├── task-verifier.md # Acceptance criteria verification
│ └── planning-validator.md # PRD/SDD alignment checking
├── skills/ # Reusable skill templates (invoked via skill loader)
│ ├── prd-template/ # PRD structure and patterns
│ ├── sdd-template/ # Atlassian 8-section SDD format
│ ├── codebase-context/ # Tech stack extraction
│ ├── agent-prompts/ # Task prompt generation
│ ├── research/ # Web/doc research patterns
│ └── task-loop-verify/ # Loop verification skill
├── hooks/ # Stop hooks for Ralph Loop methodology
│ ├── hooks.json # Hook registration
│ ├── task-loop-hook.sh # Per-task auto-retry
│ ├── feature-retry-hook.sh # Feature-wide task retry
│ └── planning-refine-hook.sh # Large task refinement
└── .claude-plugin/ # Plugin metadata
└── plugin.json
Key Workflows
Feature Planning (/feature-planning)
7-phase workflow: Description → Setup → Requirements Gathering → PRD Generation → Technical Decisions → SDD Generation → Task Generation
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 · 218 lines · 1,978 tokens per session scan A 2e15bf17f919
shipspec-claude-code-plugin CLAUDE.md is an instructions file published in the GitHub repository jsegov/shipspec-claude-code-plugin (21 stars, last pushed 9mo ago), licensed MIT. It adds 1,978 tokens to every session, about $0.0079 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).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.