verify-work

verify-work is a skill for Claude Code, Codex from AtomicBot-ai/atomic-agent. It costs 58 tokens per session (891 once invoked), scanned A, original, MIT.

A verification skill that runs the code, script, or page just changed and checks the real result before calling it finished.

In plain words
What is it for?
Use it after changing executable code to run the project's own tests or the smallest relevant command, inspect the output, and fix failures.
Why use it?
It prevents reports that claim code works when it was only written and never executed. If execution is not possible, it requires saying what could not be checked and why.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it after changing executable code to run the project's own tests or the smallest relevant command, inspect the output, and fix failures.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/atomicbot-ai/atomic-agent/verify-work
About the project

Atomic Agent is a local-first AI agent that runs its control loop and state on a user's machine while using local or cloud models. It drives browsers, edits files, runs approved commands, remembers context, schedules follow-ups, and connects to external tools, with the catalogue providing skills for its use.

AtomicBot-ai/atomic-agent · 3,347 stars · on GitHub · atomicagent.io

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.

Any agent
npx skills add AtomicBot-ai/atomic-agent --skill verify-work
Clone the repo
git clone --depth 1 https://github.com/AtomicBot-ai/atomic-agent

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 verify-work

README.md
[![agentmods](https://agentmods.dev/badge/skills/atomicbot-ai/atomic-agent/verify-work/github.svg)](https://agentmods.dev/skills/atomicbot-ai/atomic-agent/verify-work)
Your own site
<a href="https://agentmods.dev/skills/atomicbot-ai/atomic-agent/verify-work"><img src="https://agentmods.dev/badge/skills/atomicbot-ai/atomic-agent/verify-work/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.

agentmods 80×15 button for verify-work

Your own site · 80×15
<a href="https://agentmods.dev/skills/atomicbot-ai/atomic-agent/verify-work"><img src="https://agentmods.dev/badge/skills/atomicbot-ai/atomic-agent/verify-work.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 891 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.
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 $0.00058 $0.00891
Opus 5.5 $0.00023 $0.00356
Sonnet 5.5 $0.00012 $0.00178
Haiku 4.5 $0.00006 $0.00089

Measured 1mo ago against content hash cf81f64d64ec, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

verify-work 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 1mo 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.

starter-skills/verify-work/SKILL.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

verify-work

Writing a file is not evidence. Running it is.

The failure this skill exists to prevent: a turn writes source files and a test file, replies "done, tests included", and never executes a single one of them. The operator finds out later that nothing ran. If you wrote it, run it — and if you cannot run it, say so plainly instead of implying you did.

The rule

Never report code as working, done, or fixed unless a command you ran in this turn proves it. Quote the command and the part of its output that carries the verdict — an exit code, a passing count, a rendered element. "Should work" is not a verdict.

If verification is impossible here (no runtime installed, needs a device, needs a credential you must not use), say which check you could not run and why, in one sentence. That is an honest result. Silence is not.

Pick the smallest command that could fail

Verify in this order and stop at the first that applies.

  1. The project's own test command. Read package.json / Makefile / pyproject.toml first — do not guess a runner. npm test · npm run <script> · pytest -q · cargo test · go test ./...
  2. The file you just wrote. node path/to/file.mjs · python3 path/to/file.py · bash path/to/script.sh
  3. The entry point, once. A CLI: --help plus one real invocation with real arguments. A server: start it, hit one endpoint, stop it.
  4. A syntax floor, only when nothing above can run: node --check file.js · python3 -m py_compile file.py · tsc --noEmit

Run it from the directory the project expects. Capture stderr, not just stdout — a script that prints nothing and exits 1 has failed.

Web pages and anything visual

A page that loads is not a page that works. Use the browser tools:

  1. Open the file or serve it, then browser.* to navigate to it.
  2. Read the console. An uncaught exception on load is a failure even when the page looks fine. Report it and fix it.
  3. Screenshot and actually look: is the thing the operator asked for on screen, or is the canvas blank, the layout collapsed, the sprite absent?
  4. Exercise one interaction — a click, a key, a submit — and confirm the state changed.

Read the full file on GitHub · 86 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. 1mo ago First seen · 86 lines · 58 tokens per session scan A cf81f64d64ec

Subscribe to this mod's changes

verify-work is a skill published in the GitHub repository AtomicBot-ai/atomic-agent (3,347 stars, last pushed today), licensed MIT. It adds 58 tokens to every session and 891 once invoked, about $0.0002 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 2026-09-10.

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