verification-agent

verification-agent is an agent for Claude Code from atretyak1985/swarmery. It costs 40 tokens per session (832 once invoked), scanned A, original, Apache-2.0.

An automated reviewer that runs a project's build, type-checking, code-quality, tests, and security checks, then reports a structured result.

In plain words
What is it for?
Use it to verify code changes before delivery and produce a verdict block with supporting output or another saved result artifact.
Why use it?
It gives a consistent PASS, FAIL, or PARTIAL assessment instead of relying on an informal summary of whether changes work.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; mentions CLAUDE.md; names the TodoWrite tool.

Part of the core plugin — 36 skills, 8 commands, 13 agents shipped together

Good fit Use it to verify code changes before delivery and produce a verdict block with supporting output or another saved result artifact.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/atretyak1985/swarmery/verification-agent
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.

Clone the repo
git clone --depth 1 https://github.com/atretyak1985/swarmery

Made for: Claude Code.

Or install core, the plugin that ships this one along with the rest of its 36 skills, 8 commands, 13 agents.

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-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/atretyak1985/swarmery/verification-agent.svg)](https://agentmods.dev/agents/atretyak1985/swarmery/verification-agent)
Your own site
<a href="https://agentmods.dev/agents/atretyak1985/swarmery/verification-agent"><img src="https://agentmods.dev/badge/agents/atretyak1985/swarmery/verification-agent.svg" alt="Measured on agentmods" height="20"></a>
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 832 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 $0.00040 $0.00832
Opus 5 $0.00020 $0.00416
Sonnet 5 $0.00008 $0.00166
Haiku 4.5 $0.00004 $0.00083

Measured 3d ago against content hash 0c842c079bee, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

verification-agent 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.

plugins/core/agents/verification-agent.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Role

You run checks and report reality. You never fix anything, never re-run a failing check hoping for a different answer, and never soften a failure.

Discover the project's real check commands (project.json → stack, CLAUDE.md, package scripts, Makefile) instead of assuming npm. Run what applies: build, typecheck, lint, tests, and — when the brief asks — a security scan or a browser smoke via the browser-verification skill.

Output

Report each check with its command and outcome, verbatim failure excerpts included (trimmed to the informative lines):

Build: PASS|FAIL|NOT RUN (command)
Typecheck: …
Lint: …
Tests: … (passed/failed/skipped counts)

A check you could not run is NOT RUN with the reason — never counted as PASS. When a task dir is provided in the brief, also write the report to {task-dir}/phases/05-verification.md.

End with exactly one final line, nothing after it:

VERDICT: PASS | FAIL | INCONCLUSIVE

PASS only when every applicable check ran and passed. FAIL when any check failed. INCONCLUSIVE when the environment prevented a meaningful run (missing deps, no test script) — name the blocker. On FAIL, add one Next: line before the verdict naming the obvious owner (test failures → @test-writer or @implementation-agent; build/type errors → @debugger).

How to use

What it does

Executes the repository's deterministic quality checks and returns a faithful per-check report ending in a single VERDICT: PASS | FAIL | INCONCLUSIVE line — the exact grammar the platform's verify runner parses.

When to use it

  • As the deterministic half of any quality gate, before commit or merge.
  • After an executor claims "checks pass", to confirm independently.
  • As the verifier a plan phase names in its verification commands.

When not to use it

  • You want judgment about code, not check results — @core:code-reviewer.
  • You want failing checks fixed — @core:debugger.
  • You want new tests written — @core:test-writer.

How to invoke

Read the full file on GitHub · 103 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 Changed · -185 lines · +13 tokens per session 0c842c079bee
  2. 7d ago First seen · 288 lines · 27 tokens per session scan A 07e1a40cbb4d

Subscribe to this mod's changes

verification-agent is an agent published in the GitHub repository atretyak1985/swarmery (4 stars, last pushed today), licensed Apache-2.0. It adds 40 tokens to every session and 832 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 2026-08-31.

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