operating-coordharness

operating-coordharness is a skill for Claude Code, Codex from 0marm0/COORD-Harness. It costs 70 tokens per session (618 once invoked), scanned A, original, MIT.

A skill for operating CoordHarness, a local task board for coordinating multiple coding agents. It uses one SQLite database to track work, ownership, temporary leases, handoffs, and completion events.

In plain words
What is it for?
Orienting on a task, claiming and renewing work, retrieving bounded context, creating acceptance conditions, tracking long-running jobs, pausing work, and handing tasks to other agents.
Why use it?
It keeps coordination state in one place, so agents do not duplicate work or rely on conflicting dashboards, notes, or memory.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present. Also seen: mentions subagents; installed under .agents/ (shared by several agents).

Part of the coordharness plugin — 1 skill, 5 commands, 1 MCP server shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/0marm0/coord-harness/operating-coordharness
Any agent
npx skills add 0marm0/COORD-Harness --skill operating-coordharness
Clone the repo
git clone --depth 1 https://github.com/0marm0/COORD-Harness

Made for: Claude Code, Codex.

Or install coordharness, the plugin that ships this one along with the rest of its 1 skill, 5 commands, 1 MCP server.

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 operating-coordharness

README.md
[![agentmods](https://agentmods.dev/badge/skills/0marm0/coord-harness/operating-coordharness.svg)](https://agentmods.dev/skills/0marm0/coord-harness/operating-coordharness)
Your own site
<a href="https://agentmods.dev/skills/0marm0/coord-harness/operating-coordharness"><img src="https://agentmods.dev/badge/skills/0marm0/coord-harness/operating-coordharness.svg" alt="Measured on agentmods" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 618 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00070 $0.00618
Opus 5 $0.00035 $0.00309
Sonnet 5 $0.00014 $0.00124
Haiku 4.5 $0.00007 $0.00062

Measured 5d ago against content hash d7c7264fde29, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

operating-coordharness 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 5d 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.

.agents/skills/operating-coordharness/SKILL.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Operating CoordHarness

Use one coord.db as lifecycle authority. Treat dashboards, native clients, sidecars, documentation, and memory as projections or evidence; none may silently change lifecycle state.

Start from the smallest truthful context

  1. Resolve the coordinated project root and database explicitly. Do not infer a database from an unrelated checkout.
  2. Run coord preflight when available; otherwise inspect coord board and the exact work item before loading broad project context.
  3. Claim an existing assignable item before substantive work. If new work is genuinely required, create it with an acceptance condition and concrete done_signal before claiming it.

Read references/lifecycle.md for the lifecycle, handoff, review, and completion-proof contract.

Keep parallel work bounded

The orchestrator owns the durable claim. Give each subagent a non-overlapping objective and file scope; record its bounded result under the parent instead of minting misleading peer ownership. Use typed handoff when responsibility moves between actors, and optimistic concurrency when the row may have changed.

Separate agent turns from durable processes

Use tracked jobs for long CPU, GPU, build, indexing, or local-model work. A job publishes compact liveness and progress; its command body, prompts, stdout, credentials, and source text do not belong in the sidecar or board.

Read references/jobs.md before launching or terminating a process, especially when a GPU lock or process-group cleanup is involved.

Expand context intentionally

Exact board state and source artifacts outrank capsules, search indexes, facts, and accepted memory. Begin with the bounded capsule, follow exact pointers for the active item, and expand only the plane that answers the current question.

Read references/context.md when using context federation, facts, graph traversal, memory proposals, or fresh-session continuation.

Read the full file on GitHub · 64 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 64 lines · 70 tokens per session scan A d7c7264fde29

Subscribe to this mod's changes

operating-coordharness is a skill published in the GitHub repository 0marm0/COORD-Harness (1 stars, last pushed yesterday), licensed MIT. It adds 70 tokens to every session and 618 once invoked, about $0.0003 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.