pressure

pressure is a skill for Claude Code, Codex from cosmix/loom. It costs 41 tokens per session (1,059 once invoked), scanned A, original, MIT.

A review process for testing whether a written Loom plan is complete and realistic. It examines the plan, the codebase, and related plans for missing steps, incorrect assumptions, edge cases, and shared interfaces.

In plain words
What is it for?
Use it with a plan path to check cross-plan dependencies, implementation details, failure cases, and whether every proposed step can be completed from the available information.
Why use it?
It finds problems that could prevent someone from carrying out the plan, especially where multiple plans share files or code boundaries. Findings are kept tied to identifiable sections or symbols so they remain useful if the plan changes.

Skill for Claude CodeCodex

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/cosmix/loom/pressure
Any agent
npx skills add cosmix/loom --skill pressure
Clone the repo
git clone --depth 1 https://github.com/cosmix/loom

Made for: Claude Code, Codex.

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 pressure

README.md
[![agentmods](https://agentmods.dev/badge/skills/cosmix/loom/pressure.svg)](https://agentmods.dev/skills/cosmix/loom/pressure)
Your own site
<a href="https://agentmods.dev/skills/cosmix/loom/pressure"><img src="https://agentmods.dev/badge/skills/cosmix/loom/pressure.svg" alt="Measured on agentmods" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,059 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 $0.00041 $0.01059
Opus 5 $0.00020 $0.00530
Sonnet 5 $0.00008 $0.00212
Haiku 4.5 $0.00004 $0.00106

Measured 3d ago against content hash d9dbce011518, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

pressure 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 3d 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.

codex/skills/pressure/SKILL.md · 29 lines

How it starts

The opening of the file, as written. The whole thing — 29 lines — stays where its author put it; the contents beside it link to each section on GitHub.

The user has provided a plan path as the argument after $pressure. Treat that argument as .

read doc/loom/knowledge. then read (the plan file) and explore the codebase. Your task is to pressure-test the plan: hunt for omissions, wrong assumptions, missing wiring, unhandled edge cases, and any step an executor could not complete from the plan alone. Validate every finding against the actual code before reporting it — cite file:line evidence; drop any finding you cannot ground.

⚠️ IS BEING EDITED WHILE YOU WORK. A second reviewer is folding its own findings into the same file concurrently, and your review is read only after it finishes. So: anchor every finding to a symbol, stage id, or section heading — NEVER to a line number in , which will have drifted by the time anyone acts on it. Re-read immediately before writing your report and drop any finding that has already been fixed.

Cover ALL of these dimensions. The first two are the highest-yield failure classes on record.

  1. CROSS-PLAN CONTRACTS. List the sibling plans in the plan's directory (PLAN-, IN_PROGRESS-, DONE-*) that share files, symbols, or seams with this plan, and read them. For every upstream surface this plan consumes, verify the exact symbol/signature/exporting module against committed code first, else against the sibling's stage YAML (artifacts/wiring/acceptance) — NEVER against the sibling's prose: a capability promised only in a sibling's overview is built by no stage; report it as a blocking gap. For every downstream consumer plan, check that the names/accessors/seams it expects are ones this plan actually provides. Check file ownership: flag any path this plan writes that a sibling stage's files:/artifacts: also owns, and any bare file dropped into a shared module directory instead of a disjoint namespace. Check module placement against lint/import boundaries a sibling plan enforces. Where this plan needs a seam no sibling builds, the fix is an explicit amendment flagged as a blocking dependency — not a conveniently assumed interface.

  2. PROSE ⇄ FRONTMATTER COVERAGE. For every capability the plan's prose promises ("ships X", "exposes Y", a public-contract section), grep the plan's own loom YAML: it must appear in exactly one stage's artifacts: and be proven by a wiring/acceptance entry. A prose-only deliverable lets every stage complete green while the promise is never built — report it as top severity. Also check the reverse: YAML that contradicts the prose, and any stage whose acceptance can only be met by editing files missing from that stage's files:.

  3. CLAIM GROUNDING. Every symbol, path, signature, config option, library convention (UV/axis/order/defaults — read the installed source), third-party API shape and rate limit, and package/version/peer-graph fact — verify against the installed source, the live registry, or the actual config, never memory. For every specced function, check its inputs actually carry what its stated behavior and output type require. Flag edits anchored by line number instead of symbol.

  4. VERIFICATION HONESTY. For each acceptance/wiring gate: would a plausible-WRONG implementation still pass? Does the gate exercise what it claims? (A production build cannot verify a module nothing imports; a bundler neither type-checks nor compiles shader graphs; a grep proves existence, not behavior; a test of an in-memory value proves nothing about the emitted artifact.) Does every code stage run the repo's FULL canonical gate verbatim rather than a scoped subset?

  5. EXECUTABILITY & LIFECYCLE. Sandbox allow_write covers every path acceptance commands write (the lockfile by its real name, build output dirs); working_dir is right; anything shipped as an engine/driver/controller has a stage owning its composition-root call site with an executable wiring proof; runtime lifecycle decisions (ownership, scheduling, cancellation, invalidation, dispose, budget scope and ordering) are settled in the plan, not deferred to integration-verify.

Read the full file on GitHub · 29 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. 3d ago First seen · 29 lines · 41 tokens per session scan A d9dbce011518

Subscribe to this mod's changes

pressure is a skill published in the GitHub repository cosmix/loom (54 stars, last pushed today), licensed MIT. It adds 41 tokens to every session and 1,059 once invoked, about $0.0002 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 2026-08-30.

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