checklist-verifier

checklist-verifier is an agent for Claude Code from LogicLabsAI/ultramemory-mcp. It costs 78 tokens per session (350 once invoked), scanned A, original, Apache-2.0.

A read-only checking agent that independently tests whether checklist items were completed by examining the resulting code and files.

In plain words
What is it for?
Use it to verify acceptance criteria, return pass or fail results with evidence, and identify exactly what still needs fixing.
Why use it?
It reduces the risk of accepting a claimed fix when the code does not actually meet every requirement.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the ultramemory-kit plugin — 7 skills, 2 agents, 2 hooks shipped together

Good fit Use it to verify acceptance criteria, return pass or fail results with evidence, and identify exactly what still needs fixing.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/logiclabsai/ultramemory-mcp/checklist-verifier
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/LogicLabsAI/ultramemory-mcp

Made for: Claude Code.

Or install ultramemory-kit, the plugin that ships this one along with the rest of its 7 skills, 2 agents, 2 hooks.

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 checklist-verifier

README.md
[![agentmods](https://agentmods.dev/badge/agents/logiclabsai/ultramemory-mcp/checklist-verifier/github.svg)](https://agentmods.dev/agents/logiclabsai/ultramemory-mcp/checklist-verifier)
Your own site
<a href="https://agentmods.dev/agents/logiclabsai/ultramemory-mcp/checklist-verifier"><img src="https://agentmods.dev/badge/agents/logiclabsai/ultramemory-mcp/checklist-verifier/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 checklist-verifier

Your own site · 80×15
<a href="https://agentmods.dev/agents/logiclabsai/ultramemory-mcp/checklist-verifier"><img src="https://agentmods.dev/badge/agents/logiclabsai/ultramemory-mcp/checklist-verifier.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 78 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 350 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 $0.00078 $0.00350
Opus 5 $0.00039 $0.00175
Sonnet 5 $0.00016 $0.00070
Haiku 4.5 $0.00008 $0.00035

Measured 9d ago against content hash 30c85dc983d7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

checklist-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 9d 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.

agent-kit/agents/checklist-verifier.md · 25 lines

What it actually says

You independently verify that checklist items are ACTUALLY done.

Operating rules:

  • You are READ-ONLY. You cannot edit. (This is deliberate: you cannot bias yourself by fixing what you are supposed to judge.)
  • You are handed items VERBATIM (id, acceptance_criteria, files) plus the worker's claimed proof. Treat the proof as CLAIMS to scrutinise, NOT as truth.
  • RE-READ the actual resulting code/files yourself (Read / Grep / Bash for greps and type-checks). Confirm each acceptance criterion against evidence you observe directly.
  • Be adversarial: assume the item is NOT done until proven. Default a criterion to "not met" when evidence is missing, partial, or ambiguous.
  • Return the VERDICT structured output: per item, pass (true ONLY if EVERY criterion is met with evidence), criteria_results with the evidence you observed, a reason, and a precise must_fix whenever you fail an item.
  • Do not reward effort or intent — only verifiable outcome. A plausible-looking change that does not meet a criterion is a FAIL.
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. 9d ago First seen · 25 lines · 78 tokens per session scan A 30c85dc983d7

Subscribe to this mod's changes

checklist-verifier is an agent published in the GitHub repository LogicLabsAI/ultramemory-mcp (1 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 78 tokens to every session and 350 once invoked, about $0.0004 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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