loom-usage

loom-usage is a skill for Claude Code from cosmix/loom. It costs 15 tokens per session (5,725 once invoked), scanned A, original, MIT.

A guide for operating Loom, a tool that runs planned development work across separate workspaces. It covers starting plans, monitoring stages, diagnosing failures, handling merge conflicts, and recovering from crashes.

In plain words
What is it for?
Use it to run Loom plans, inspect status, manage worktrees and sessions, and recover interrupted orchestration.
Why use it?
It gives the operator a process for managing multi-stage automated coding work when execution fails, gets blocked, or runs out of context.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions CLAUDE.md; mentions Claude Code.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is │ │ └── work -> ../../../.loom/work # Symlink to shared state.

Good fit Use it to run Loom plans, inspect status, manage worktrees and sessions, and recover interrupted orchestration.

Compare 6 skills from other repositories ↓
View source ↗ cosmix/loom
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/cosmix/loom
agentmods
npx agentmods add skills/cosmix/loom/loom-usage

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 loom-usage

README.md
[![agentmods](https://agentmods.dev/badge/skills/cosmix/loom/loom-usage.svg)](https://agentmods.dev/skills/cosmix/loom/loom-usage)
Your own site
<a href="https://agentmods.dev/skills/cosmix/loom/loom-usage"><img src="https://agentmods.dev/badge/skills/cosmix/loom/loom-usage.svg" alt="Measured on agentmods" height="20"></a>
Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,725 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Data Exfiltration · line 426
    Code or instructions that leak agent conversation context to external services, potentially exposing sensitive user interactions.
    Fix: Remove any code that sends prompts, responses, or session data externally. Preserve user privacy; never exfiltrate conversation content.
  • high Tool Misuse · line 655
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
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 $0.00015 $0.05725
Opus 5 $0.00008 $0.02863
Sonnet 5 $0.00003 $0.01145
Haiku 4.5 $0.00002 $0.00573

Measured 4d ago against content hash e0c3eb56d682, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

loom-usage 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 4d 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.

skills/loom-usage/SKILL.md · 740 lines

How it starts

The opening of the file, as written. The whole thing — 740 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Loom Usage — Meta-Orchestration for Claude

Overview

This skill enables Claude to drive loom itself — initializing plans, running orchestration, monitoring execution, debugging failures, and recovering from errors. This is meta-orchestration: Claude operating loom as a tool rather than working inside a loom worktree as an agent.

When to Use

  • Running a loom plan end-to-end
  • Interpreting loom status output and deciding next steps
  • Debugging why a stage failed, is blocked, or has merge conflicts
  • Recovering from crashes, context exhaustion, or corrupted state
  • Managing worktrees, sessions, and daemon lifecycle
  • Understanding .loom/work/ directory structure and signal files

Complementary Skills

Skill Use For
/loom-plan-writer Creating new plan files
/loom-wiring-test Designing wiring verification YAML
/loom-before-after Before/after delta-proof verification pairs
/loom-dead-code-check Dead code detection configuration
This skill Everything after the plan is written

The Loom Lifecycle

WRITE PLAN          VALIDATE & INIT         EXECUTE            MONITOR & DEBUG
─────────────────── ─────────────────────── ────────────────── ──────────────────
/loom-plan-writer → loom init plan.md     → loom run         → loom status
                    loom repair --fix                           loom check
                                                               loom diagnose
                                                               loom stage retry
                                          ────────────────── ──────────────────
                                          COMPLETE            CLEAN UP
                                          ────────────────── ──────────────────
                                          All stages merged → loom clean
                                          Plan → DONE-PLAN-*

Phase 1: Validate & Initialize

Pre-Flight Checks

Read the full file on GitHub · 740 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. 4d ago First seen · 740 lines · 15 tokens per session scan A e0c3eb56d682

Subscribe to this mod's changes

loom-usage is a skill published in the GitHub repository cosmix/loom (54 stars, last pushed yesterday), licensed MIT. It adds 15 tokens to every session and 5,725 once invoked, about $0.0001 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 2026-09-03.

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