harness-claude: Instructions file for Claude Code

CLAUDE.md

harness-claude CLAUDE.md is an instructions file for Claude Code from vasuag09/harness-claude. It costs 1,723 tokens per session, scanned A, original, MIT.

A set of project instructions describing harness-claude, a development workflow that moves from planning and implementation through verification and maintenance.

In plain words
What is it for?
Use it to understand how this project’s commands, pipeline, memory, and supporting documentation fit together.
Why use it?
It gives contributors shared context about the repository, its stages, operating principles, and release documentation.

Instructions file for Claude Code

Written for Claude Code: Claude Code plugin machinery. Also seen: mentions CLAUDE.md; mentions subagents; mentions Claude Code.

This is vasuag09/harness-claude's own configuration. It tells Claude Code how to work on harness-claude itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything harness-claude configures →

Reuse

Borrowing it

Nothing to install: this file belongs to vasuag09/harness-claude. 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/vasuag09/harness-claude/master/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/vasuag09/harness-claude

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 harness-claude CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/vasuag09/harness-claude/claude-md/github.svg)](https://agentmods.dev/instructions/vasuag09/harness-claude/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/vasuag09/harness-claude/claude-md"><img src="https://agentmods.dev/badge/instructions/vasuag09/harness-claude/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.

agentmods 80×15 button for harness-claude CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/vasuag09/harness-claude/claude-md"><img src="https://agentmods.dev/badge/instructions/vasuag09/harness-claude/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,723 This file is loaded in full into every session.
When invoked 1,723 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01723 $0.01723
Opus 5 $0.00861 $0.00861
Sonnet 5 $0.00345 $0.00345
Haiku 4.5 $0.00172 $0.00172

Measured 8d ago against content hash 60bf969dadb6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

harness-claude 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 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.

CLAUDE.md · 108 lines

How it starts

The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.

harness-claude

A lean, full-SDLC Claude Code harness. The pipeline is Plan → Implement → Verify → Maintain, with memory persistence cross-cutting and subagent orchestration underneath.

This file is the harness's own project context. The rules below are imported so they are active when working inside this repo. To make them active globally (on your other projects), see README → "Make the rules global (opt-in)".

The pipeline

DISCOVER† ─► PLAN ────────────────► IMPLEMENT ─────► VERIFY ─────────────────► MAINTAIN
/discover    /spec  /research             /implement     /review  /security-review    /refactor-clean
             /plan  /plan-check           /build-fix  /design-review*  /test           /onboard
             /architect* /design*                     /verify  /ship
                  memory: /save-session · /resume-session · STATE.md spine (cross-cutting)

= the conditional discovery entry: /discover fires above /spec only when intent is vague (you want something but can't yet state what) — it frames the problem and converges to one direction for /spec; an already-clear request skips it. * = the conditional design gate: /architect (system design) for load-bearing architecture, /design + /design-review (product/UX) for user-facing surfaces. A change needs one, both, or neither — internal/CLI work (like this harness) skips them.

Move forward only when a phase's exit criteria are met (see rules/workflow.md).

Phase orchestrators run a whole phase in one command (thin wrappers that sequence the atomic skills, delegate to subagents, and halt for your input at each gate): /harness-plan · /harness-implement · /harness-verify · /harness-maintain, and /harness for the full pipeline with a checkpoint between phases. Use atomic skills (/plan, /review, ...) when you only want one step.

What's here

  • rules/ — always-on guidance (engineering, security, testing, typescript, python, workflow, agents, git)
  • skills/ — the 19 pipeline drivers you invoke as /discover, /spec, /plan, /plan-check, /review, ... (incl. the discovery entry: /discover is the step above /spec — when intent is vague it turns it into a framed problem + one chosen direction, then hands off to /spec; conditional/opt-in, an already-clear request skips it; and the design altitude: /design produces a product/UX/UI brief in PLAN and /design-review gates craft + a11y in VERIFY — both conditional on a user-facing surface, driven by the harness's own self-contained design rubrics under skills/design/references/; plus four opt-in eval skills: /eval checkpoints a change against its spec's acceptance criteria, /extract turns a repeatable workflow into a staged skill proposal, /benchmark measures whether a component earns its keep via pass@k/pass^k, and /health takes the repo's test/lint pass-fail pulse on demand — all off by default), plus /lazy (Phase 3 · L3 generation reduction — the "build the minimum that works" reflex, active by default via a hook, intensity lite|full|ultra), plus /operate (Phase 4 · long-running agents — supervises an unattended /loop//schedule run with halting guardrails + durable .claude/runs/<id>.json state, self-checkpointing against /health + /eval; opt-in, off by default), plus /orchestrate (Phase 5 · multi-agent orchestration — the third orchestration mode: decomposes a task across 3+ independent files, fans out to parallel workers on the platform Workflow tool with one-writer-per-file by assignment, and reconciles their summaries; opt-in, off by default), plus /fix (bug-fix fast lane — the parallel entry for fixing something already broken: reproduce-as-a-failing-test first, name the root cause, write a minimal fix-plan, then hand off to /implement → verify → ship; reuses existing agents, no new agent/dep; opt-in), plus /deploy + /observe (release & feedback loop — the step past /ship and the step that brings prod back in, closing the pipeline into a loop: /deploy orchestrates the project's own deploy mechanism with an arm-to-fire HALT before any outward action + smoke-tests the deployed artifact + guards a rollback; /observe takes a brought signal — stack trace/log/error/issue URL — locates the failing area, shapes a repro seed, and routes to /fix; both opt-in, no new agent/dep)
  • agents/ — 8 scoped subagents the skills delegate to
  • hooks/ + scripts/hooks/ — runtime automations (tmux, format, typecheck, quality/design gates, strategic compact, build analysis, memory persistence, structural orientation, generation reduction, pipeline routing)
  • .mcp.json — memory · sequential-thinking · magic (load only when the plugin is enabled)

Read the full file on GitHub · 108 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. 8d ago First seen · 108 lines · 1,723 tokens per session scan A 60bf969dadb6

Subscribe to this mod's changes

harness-claude CLAUDE.md is an instructions file published in the GitHub repository vasuag09/harness-claude (2 stars, last pushed 2mo ago), licensed MIT. It adds 1,723 tokens to every session, about $0.0086 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 2026-08-31.

Related

Other instructions, from other repositories

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.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

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).

microsoft/vscode · 6,785 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

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.

langchain-ai/langchain · 4,469 tokens

spec-kit AGENTS.md

AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.

github/spec-kit · 7,104 tokens