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.
curl -O https://raw.githubusercontent.com/vasuag09/harness-claude/master/CLAUDE.mdgit clone --depth 1 https://github.com/vasuag09/harness-claudeWrote 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/vasuag09/harness-claude/claude-md)<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.
<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>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 | $0.01723 | $0.01723 |
| Opus 5 | $0.00861 | $0.00861 |
| Sonnet 5 | $0.00345 | $0.00345 |
| Haiku 4.5 | $0.00172 | $0.00172 |
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.
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:/discoveris 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:/designproduces a product/UX/UI brief in PLAN and/design-reviewgates craft + a11y in VERIFY — both conditional on a user-facing surface, driven by the harness's own self-contained design rubrics underskills/design/references/; plus four opt-in eval skills:/evalcheckpoints a change against its spec's acceptance criteria,/extractturns a repeatable workflow into a staged skill proposal,/benchmarkmeasures whether a component earns its keep via pass@k/pass^k, and/healthtakes 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, intensitylite|full|ultra), plus/operate(Phase 4 · long-running agents — supervises an unattended/loop//schedulerun with halting guardrails + durable.claude/runs/<id>.jsonstate, 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/shipand the step that brings prod back in, closing the pipeline into a loop:/deployorchestrates the project's own deploy mechanism with an arm-to-fire HALT before any outward action + smoke-tests the deployed artifact + guards a rollback;/observetakes 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)
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 · 108 lines · 1,723 tokens per session scan A 60bf969dadb6
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.
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