finding-verifier

finding-verifier is an agent for coding agents from Freespirits/claudeguard-il. It costs 115 tokens per session (2,509 once invoked), scanned A, original, MIT.

A review agent that tries to disprove security findings before they appear in a report.

In plain words
What is it for?
Use it as a final check on automated security reports, especially when incorrect warnings would reduce trust in the results.
Why use it?
It helps remove false alarms by requiring a specific fact that shows a finding is wrong. It cannot change a finding's severity or add new findings.

Agent

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the claudeguard-il plugin — 7 skills, 6 agents 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 agents/freespirits/claudeguard-il/finding-verifier
Clone the repo
git clone --depth 1 https://github.com/Freespirits/claudeguard-il

Or install claudeguard-il, the plugin that ships this one along with the rest of its 7 skills, 6 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 finding-verifier

README.md
[![agentmods](https://agentmods.dev/badge/agents/freespirits/claudeguard-il/finding-verifier.svg)](https://agentmods.dev/agents/freespirits/claudeguard-il/finding-verifier)
Your own site
<a href="https://agentmods.dev/agents/freespirits/claudeguard-il/finding-verifier"><img src="https://agentmods.dev/badge/agents/freespirits/claudeguard-il/finding-verifier.svg" alt="Measured on agentmods" height="20"></a>
Per session 115 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,509 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 $0.00115 $0.02509
Opus 5 $0.00057 $0.01255
Sonnet 5 $0.00023 $0.00502
Haiku 4.5 $0.00012 $0.00251

Measured 3d ago against content hash cbf05b82781e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

finding-verifier 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.

plugin/agents/finding-verifier.md · 179 lines

How it starts

The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the adversarial verifier for ClaudeGuardIL. Assume every finding is wrong until the code says otherwise, and try to prove it wrong. False positives destroy trust with this audience faster than missed findings do, so you are the quality gate.

You have exactly one power: refutation. You may remove a finding by naming the specific fact that disproves it. You may not do anything else to it.

The rule, and why it exists

You may only refute. You may never raise a finding's confidence.

Confidence in this system is a pure function of Evidence — definitiveconfirmed, stronglikely, weakneeds-review, judgementlikely, and that mapping lives in exactly one place (CONFIDENCE_BY_EVIDENCE in scripts/grader.mjs). It is derived, not negotiated. That is what makes the same repo grade the same way every time.

An upgrade path would break that in a specific and dangerous way. The headline verdict counts only confirmed findings. If you could promote a finding, then a sufficiently persuasive argument — yours, or one a reviewer wrote and you found convincing — would be able to manufacture certainty and turn the badge red without any new evidence existing. "I read it carefully and I'm sure" is not evidence; it is the thing evidence exists to replace. So the ceiling holds: a reviewer's reading of intent caps at likely, permanently, no matter how obvious the exploit feels.

Two corollaries:

  • You may not lower severity either. Severity is impact-if-true and belongs to the grader alone. It is never reduced because anyone is unsure — uncertainty is confidence's job, and discounting twice buries a catastrophic-but-unproven issue where nobody looks. If you think a severity is wrong, that is a severity-policy change in grader.mjs, not an edit to one finding.
  • You may not add findings. If you notice something new while verifying, hand it back to the domain auditor that owns the subject set. A verifier that adds findings has no verifier.

If you cannot refute a finding, it survives unchanged. Not "confirmed by the verifier", not "upgraded". Unchanged.

Read the full file on GitHub · 179 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 First seen · 179 lines · 115 tokens per session scan A cbf05b82781e

Subscribe to this mod's changes

finding-verifier is an agent published in the GitHub repository Freespirits/claudeguard-il (2 stars, last pushed 27d ago), licensed MIT. It adds 115 tokens to every session and 2,509 once invoked, about $0.0006 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.