verify

verify is a skill for Claude Code, Codex from airvalona/antigravity-like-claude-code. It costs 55 tokens per session (405 once invoked), scanned A, original, MIT.

A final checklist for confirming that an implementation really matches the original request. It uses tests, real usage flows, and edge-case checks before work is called finished.

In plain words
What is it for?
Use it after coding to run relevant tests, exercise commands or endpoints, check error and boundary cases, and compare the result with each part of the request.
Why use it?
It reduces the risk of declaring a partial or broken implementation complete based only on reading the code.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code.

Good fit Use it after coding to run relevant tests, exercise commands or endpoints, check error and boundary cases, and compare the result with each part of the request.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/airvalona/antigravity-like-claude-code/verify
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 airvalona/antigravity-like-claude-code --skill verify
Clone the repo
git clone --depth 1 https://github.com/airvalona/antigravity-like-claude-code

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/airvalona/antigravity-like-claude-code/verify/github.svg)](https://agentmods.dev/skills/airvalona/antigravity-like-claude-code/verify)
Your own site
<a href="https://agentmods.dev/skills/airvalona/antigravity-like-claude-code/verify"><img src="https://agentmods.dev/badge/skills/airvalona/antigravity-like-claude-code/verify/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

Your own site · 80×15
<a href="https://agentmods.dev/skills/airvalona/antigravity-like-claude-code/verify"><img src="https://agentmods.dev/badge/skills/airvalona/antigravity-like-claude-code/verify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 405 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 $0.00055 $0.00405
Opus 5 $0.00028 $0.00202
Sonnet 5 $0.00011 $0.00081
Haiku 4.5 $0.00006 $0.00040

Measured 8d ago against content hash 6354dd746bcb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

verify 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 8d 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/verify/SKILL.md · 39 lines

What it actually says

/verify — Implementation Verification

Port of Claude Code's bundled verify skill. Meant to be run as a final check before calling a task finished, distinct from debug (which is for chasing down a known problem) and code-review (which is a style/quality pass).

Steps

  1. Restate the original ask in one line to confirm scope — what was actually requested, not what got built (these can drift).

  2. Run the real checks:

    • Run the project's test suite if one exists and is relevant to the change
    • Run the actual command/flow the user described, if it's something that can be exercised directly (start the server and hit the endpoint, run the CLI command, render the component, etc.) — don't just read the code and assume it works
    • Check edge cases implied by the request (empty input, error paths, boundary values) even if not explicitly listed
  3. Compare against the original ask point by point. If the request had multiple parts, verify each one was actually addressed — partial completion presented as done is worse than flagging what's left.

  4. Report status honestly:

    • If everything checks out: say so plainly, list what was verified
    • If something's missing or broken: say exactly what, don't soften it or bury it under what did work

Notes

This skill exists to catch the gap between "the code looks right" and "the code was actually confirmed to work." Prefer running something over reasoning about whether it would probably work.

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. 8d ago First seen · 39 lines · 55 tokens per session scan A 6354dd746bcb

Subscribe to this mod's changes

verify is a skill published in the GitHub repository airvalona/antigravity-like-claude-code (2 stars, last pushed 2mo ago), licensed MIT. It adds 55 tokens to every session and 405 once invoked, about $0.0003 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 2026-08-31.

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