Borrowing it
Nothing to install: this file belongs to enmanuelmag/agent-harness-kit. 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/enmanuelmag/agent-harness-kit/main/AGENTS.mdgit clone --depth 1 https://github.com/enmanuelmag/agent-harness-kitWrote 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/enmanuelmag/agent-harness-kit/agents-md)<a href="https://agentmods.dev/instructions/enmanuelmag/agent-harness-kit/agents-md"><img src="https://agentmods.dev/badge/instructions/enmanuelmag/agent-harness-kit/agents-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/enmanuelmag/agent-harness-kit/agents-md"><img src="https://agentmods.dev/badge/instructions/enmanuelmag/agent-harness-kit/agents-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 | $0.00893 | $0.00893 |
| Opus 5.5 | $0.00357 | $0.00357 |
| Sonnet 5.5 | $0.00179 | $0.00179 |
| Haiku 4.5 | $0.00089 | $0.00089 |
Grade A, and why
agent-harness-kit AGENTS.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 15d 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 — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — @cardor/agent-harness-kit
Read this file first. It is the navigation map for every AI agent working in this repository.
Project
@cardor/agent-harness-kit — A CLI and MCP tools for LLM providers
Health check and repair mode
tasks.claim runs native health automatically and returns the health result and execution mode. A green result enters normal; a failed result enters blocked, where diagnostic actions remain available but builder/custom implementation is denied. If the change itself repairs the failure, call tasks.repair.begin(taskId, actor, reason, scope) with a bounded audit trail before implementation. tasks.update(taskId, 'done') runs final health automatically and closes only on a fresh pass. health.run(taskId) remains available for diagnostic reruns; ahk health is manual and stateless.
Harness data (source of truth)
| File | Purpose |
|---|---|
.harness/harness.db |
SQLite: tasks, actions, and action sections |
MCP tools (preferred)
The harness exposes tools via MCP server on port 3742. Use these instead of reading files directly.
Lifecycle responses may include an additive operational-notices block. Briefly relay relevant actionable notices to the developer; a suggested command is information, not authorization to run it.
actions.start taskId agent → start an action, returns a numeric actionId
actions.write actionId section text → record a section (result, blockers, ...)
actions.complete actionId summary → close the action
actions.list taskId [agent] [status] [limit] [cursor] → compact newest-first action index with pagination
actions.get_by_id actionId → single action with section index (no content)
actions.sections_list actionId [types] [limit] [cursor] → compact section index with type filtering
actions.sections_get sectionId [length] [offset] → ranged section content reader
actions.handoff.get taskId [recipient] → newest completed canonical handoff
actions.handoff.write actionId recipient ... → recipient-directed bounded handoff
tasks.add title [slug] [description] [acceptance] → create a new task from natural language
tasks.get [status] → list tasks (pending | in_progress | done | blocked)
tasks.claim id → claim and run health automatically
tasks.repair.begin taskId actor reason scope → audited repair after failed health
health.run taskId → diagnostic server-owned health rerun
tasks.update id status → done runs final health automatically
tasks.acceptance.update criterionId → mark an acceptance criterion as met
docs.search query → search ./docs for relevant content
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.
- 15d ago Changed · +2 lines · +37 tokens per session 195857668d02
- 16d ago Changed · -4 lines · -40 tokens per session 8b5d993f1998
- 17d ago Changed · +1 lines · +155 tokens per session 46922d26bea4
- 19d ago Changed · -3 lines · -118 tokens per session 6305657d9052
- 1mo ago Changed · -2 lines · -34 tokens per session f0038d109dff
- 1mo ago Changed · -6 lines · -36 tokens per session 9ee2ff4fbbba
- 1mo ago Changed · +11 lines · +149 tokens per session 83be7672ced7
- 1mo ago First seen · 81 lines · 780 tokens per session scan A 021c49ad2695
agent-harness-kit AGENTS.md is an instructions file published in the GitHub repository enmanuelmag/agent-harness-kit (183 stars, last pushed yesterday), licensed Apache-2.0. It adds 893 tokens to every session, about $0.0036 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.