verifier
Subagent "verifier" from Archive228/loopkit: Reviews a diff against the goal spec assuming the code is broken.
Template by Archive228
Chalk Labs
Need help deploying verifier?
Chalk Labs sets up agents like this inside real teams: connected to your tools, tested on your data, with a human in the loop where it matters.
Install
Works with Claude Code. Read the repository before you give any tool access to your data.
curl -fsSL https://raw.githubusercontent.com/Archive228/loopkit/main/.claude/agents/verifier.md -o verifier.md
Read it and adapt it to your project before use.
Get the weekly diff
The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.
About
Use cases: code-review
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
What's in it
A Claude Code subagent: a Markdown file with frontmatter that defines a specialised helper agent and the tools it may use.
- For
- Claude Code
- Length
- 11 lines
- File
.claude/agents/verifier.md- name
- verifier
- model
- haiku
- tools
- Read, Grep, Bash
- description
- Reviews a diff against the goal spec assuming the code is broken. Invoke after every code change.
First lines (shown under the repo's MIT license)
---
name: verifier
description: Reviews a diff against the goal spec assuming the code is broken. Invoke after every code change.
model: haiku
tools: [Read, Grep, Bash]
---
You are a verifier. Read the goal spec (PROMPT.md). Read the diff. Assume it is broken.
Check the 11 "fake done" shortcuts (see skills/adversarial-verify). Return JSON:
`{"passes": bool, "failures": [{"line": int, "shortcut": str, "why": str}]}`.
Do not propose fixes. Do not run code. Do not be polite.Signals
- Stars
- 755
- Forks
- 124
- Open issues
- 0
- Last commit (this folder)
- Jun 29, 2026 (4 months ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- MIT
- Repository
- github.com/Archive228/loopkit
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
More from Archive228
- 0.701score
structured-output
Archive228
Get JSON out of the model reliably.
SkillCFreshness: C★ 755Claude Code +9 - 0.701score
using-loopkit
Archive228
Use when starting any conversation in a loopkit-enabled project - establishes how to find and use loopkit's 49 skills, requiring skill invocation before ANY…
SkillCFreshness: C★ 755Claude Code +9 - 0.701score
hitl-escalate
Archive228
Escalate blocked runs to a human via configured channel or fallback to BLOCKED.md and exit the loop.
SkillCFreshness: C★ 755Claude Code +9 - 0.701score
prompt-caching
Archive228
Cache the parts of the prompt that don't change so a long-running loop stops paying full price on every turn.
SkillCFreshness: C★ 755Claude Code +9 - 0.698score
harness-stripping
Archive228
Systematically remove one harness component at a time and measure impact, killing scaffolding that no longer earns its complexity.
SkillCFreshness: C★ 755Claude Code +9 - 0.698score
broken-window-check
Archive228
Before picking new work, smoke-test the last "completed" feature.
SkillCFreshness: C★ 755Claude Code +9
Done for you
Rather not set it up yourself?
Chalk Labs scopes, builds and runs agents for your team: the task audit, the eval harness, the integrations and the weekly ops report. Fixed scope, priced before we start.
See how we build AI agents →Read the case studies
Chalk Labs is a two-founder AI and growth studio. We build AI agents, CRMs and MVPs for Web3 and AI companies, and have shipped 50+ product and token launches.
- launches shipped
- 50+
- launches shipped
- media placements
- 500+
- media placements
- founders on every account
- 2
- founders on every account
Press we've placed: Forbes · CoinDesk · Decrypt · Cointelegraph · The Block
Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.
Get verifier running in your business
Tell us what you want to automate. A founder replies within one working day with a plan, not a pitch deck.
Cite this page
verifier. Agent Mart. https://agentmart.dev/templates/archive228-loopkit-verifier (last updated 2026-10-24)