verification-before-completion

verification-before-completion is a skill for Claude Code, Codex from yimwoo/hotl-plugin. It costs 29 tokens per session (184 once invoked), scanned A, original, MIT.

A checklist for verifying tests, linting, formatting, and requested behavior before claiming a coding task is complete. Linting checks code for common errors and style problems.

In plain words
What is it for?
Use it before reporting that a change is done, fixed, or passing, especially when tests or code-quality checks are part of the task.
Why use it?
It prevents completion claims based on assumptions by requiring visible evidence from automated checks and behavior verification.

Skill for Claude CodeCodex

Part of the hotl plugin — 20 skills, 9 commands, 1 agent, 1 hook 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/yimwoo/hotl-plugin/verification-before-completion
Any agent
npx skills add yimwoo/hotl-plugin --skill verification-before-completion
Clone the repo
git clone --depth 1 https://github.com/yimwoo/hotl-plugin

Made for: Claude Code, Codex.

Or install hotl, the plugin that ships this one along with the rest of its 20 skills, 9 commands, 1 agent, 1 hook.

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 verification-before-completion

README.md
[![agentmods](https://agentmods.dev/badge/skills/yimwoo/hotl-plugin/verification-before-completion.svg)](https://agentmods.dev/skills/yimwoo/hotl-plugin/verification-before-completion)
Your own site
<a href="https://agentmods.dev/skills/yimwoo/hotl-plugin/verification-before-completion"><img src="https://agentmods.dev/badge/skills/yimwoo/hotl-plugin/verification-before-completion.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 184 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 $0.00029 $0.00184
Opus 5 $0.00015 $0.00092
Sonnet 5 $0.00006 $0.00037
Haiku 4.5 $0.00003 $0.00018

Measured 5d ago against content hash 87b76468dcbd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

verification-before-completion 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.

skills/verification-before-completion/SKILL.md · 32 lines

What it actually says

Verification Before Completion

Rule

Never claim "done", "fixed", or "passing" without running verification commands and showing the output.

Evidence before assertions. Always.

Checklist

Before claiming complete:

  • Run the test suite: show the output
  • Run the linter/formatter: show the output
  • Confirm the specific behavior that was requested works
  • No regressions in previously passing tests

What to Show

Tests: pytest output (N passed, 0 failed)
Lint: ruff/eslint output (clean)
Behavior: [description of manual or automated check]

If anything fails: report it honestly. Do not claim partial success as full success.

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 · 32 lines · 29 tokens per session scan A 87b76468dcbd

Subscribe to this mod's changes

verification-before-completion is a skill published in the GitHub repository yimwoo/hotl-plugin (26 stars, last pushed 2mo ago), licensed MIT. It adds 29 tokens to every session and 184 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 2026-08-30.

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