verification

verification is a skill for Claude Code, Codex from sefaertunc/Worclaude. It costs 18 tokens per session (1,123 once invoked), scanned A, original, MIT.

A set of checks that confirms a feature works in its real environment, beyond unit tests that check small pieces of code.

In plain words
What is it for?
Use it to verify web pages, APIs, command-line tools, and data-related changes through automated checks and, where needed, manual testing.
Why use it?
It helps catch problems that automated code tests miss, such as broken pages, API errors, browser warnings, or layout issues. It keeps changes from being committed before they are checked.

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/sefaertunc/worclaude/verification
Any agent
npx skills add sefaertunc/Worclaude --skill verification
Clone the repo
git clone --depth 1 https://github.com/sefaertunc/Worclaude

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 verification

README.md
[![agentmods](https://agentmods.dev/badge/skills/sefaertunc/worclaude/verification.svg)](https://agentmods.dev/skills/sefaertunc/worclaude/verification)
Your own site
<a href="https://agentmods.dev/skills/sefaertunc/worclaude/verification"><img src="https://agentmods.dev/badge/skills/sefaertunc/worclaude/verification.svg" alt="Measured on agentmods" height="20"></a>
Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,123 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00018 $0.01123
Opus 5 $0.00009 $0.00562
Sonnet 5 $0.00004 $0.00225
Haiku 4.5 $0.00002 $0.00112

Measured 5d ago against content hash 4588ce0284ea, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

verification scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -X POST http://localhost:3000/api/resource \
.claude/skills/verification/SKILL.md · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verification

Note: The bash examples below are reference snippets. If you enable disableSkillShellExecution in Claude Code settings (v2.1.101+), any inline shell execution from skills is blocked. These fenced examples are safe to read; copy-paste them into your terminal to run.

Beyond Unit Tests

Unit tests verify code logic. Verification confirms the feature actually works in its real environment. Both are necessary. Neither alone is sufficient.

The /verify command runs automated checks, but domain-specific verification often requires manual steps or specialized tooling.

Closing the Feedback Loop

Every change needs a feedback loop: make a change, verify it worked, then move on. The loop must be closed BEFORE committing.

Bad workflow: change code -> commit -> move to next task -> discover it's broken Good workflow: change code -> verify -> commit -> move to next task

Web Application Verification

After changing UI or API behavior:

  1. Start the dev server
  2. Navigate to the affected page/endpoint
  3. Test the happy path manually
  4. Test at least one error path
  5. Check browser console for errors/warnings
  6. Verify responsive behavior if UI changed

For API changes:

# Test the endpoint directly
curl -X POST http://localhost:3000/api/resource \
  -H "Content-Type: application/json" \
  -d '{"field": "value"}'

# Check response status and body

API Verification

Test beyond the happy path:

  • Valid request with all fields
  • Valid request with minimum fields
  • Invalid request (missing required field)
  • Invalid request (wrong types)
  • Authentication failures
  • Rate limiting behavior
  • Concurrent request handling (if relevant)

Use curl, httpie, or the project's API test suite. Automate what you can, but do at least one manual check of the actual running server.

CLI Verification

After changing CLI behavior:

  1. Run the command with typical arguments
  2. Run with edge case arguments (empty, very long, special characters)
  3. Run with invalid arguments (verify error messages are helpful)
  4. Test piping and redirection if applicable
  5. Verify exit codes

Read the full file on GitHub · 146 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. 5d ago First seen · 146 lines · 18 tokens per session scan A 4588ce0284ea

Subscribe to this mod's changes

verification is a skill published in the GitHub repository sefaertunc/Worclaude (4 stars, last pushed 26d ago), licensed MIT. It adds 18 tokens to every session and 1,123 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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