verify

verify is a skill for Claude Code from epicsagas/epic-harness. It costs 23 tokens per session (692 once invoked), scanned A, original, Apache-2.0.

A pre-completion checklist that requires a project's build, tests, lint checks, and applicable type checks to pass before work is marked finished or shipped.

In plain words
What is it for?
Use it before reporting a coding task as done or opening a pull request.
Why use it?
It reduces the chance of delivering code that fails to build, breaks tests, or contains unfinished debugging changes.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents.

Part of the epic plugin — 28 skills, 6 hooks 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 skills/epicsagas/epic-harness/verify
Any agent
npx skills add epicsagas/epic-harness --skill verify
Clone the repo
git clone --depth 1 https://github.com/epicsagas/epic-harness

Made for: Claude Code.

Or install epic, the plugin that ships this one along with the rest of its 28 skills, 6 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 verify

README.md
[![agentmods](https://agentmods.dev/badge/skills/epicsagas/epic-harness/verify.svg)](https://agentmods.dev/skills/epicsagas/epic-harness/verify)
Your own site
<a href="https://agentmods.dev/skills/epicsagas/epic-harness/verify"><img src="https://agentmods.dev/badge/skills/epicsagas/epic-harness/verify.svg" alt="Measured on agentmods" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 692 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 5.1 $0.00023 $0.00692
Opus 5 $0.00012 $0.00346
Sonnet 5 $0.00005 $0.00138
Haiku 4.5 $0.00002 $0.00069

Measured 6d ago against content hash 2526c2790237, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, 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 6d 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 · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verify — Pre-Completion Check

Iron Law

NO COMPLETION CLAIMS WITHOUT FRESH VERIFICATION EVIDENCE. "I tested it" without output is an unverified claim.

When to Trigger

  • Before a /go subagent reports "done"
  • Before /ship creates a PR
  • Before telling the user "it's ready"
  • After any significant code change

Process

1. Build

# Detect and run the project's build command
npm run build  # or: go build ./... | cargo build | make

Must exit 0. If it fails, fix before proceeding.

2. Test

# Run the project's test suite
npm test  # or: go test ./... | pytest | cargo test

Must exit 0. If tests fail, invoke debug skill.

3. Lint

# Run linter if configured
npm run lint  # or: golangci-lint run | ruff check | cargo clippy

Warnings are OK. Errors must be fixed.

4. Type Check (if applicable)

npx tsc --noEmit  # TypeScript
mypy .            # Python

5. Final Sanity

  • No console.log / print debug statements left
  • No TODO or FIXME introduced without explanation
  • No hardcoded test values or credentials
  • All new files are tracked by git

Anti-Rationalization

Excuse Rebuttal What to do instead
"Tests pass locally" Did you actually run them? Trust the output, not your memory. Run npm test right now. Show the output.
"I only changed one file" One file can break the entire build. Imports propagate. Full build + test. Every time. No exceptions.
"Lint warnings aren't errors" Warnings become errors. Fix them before they multiply. Zero warnings policy. Fix now or suppress with justification.
"CI will catch it" CI feedback is 5-10 min delayed. Catch it locally in seconds. Run verify locally before pushing. CI is the safety net, not the test.

Evidence Required

Before reporting "ready", show ALL of these:

  • Build output: exit code 0 (show the command + result)
  • Test output: all passing (show summary line)
  • Lint output: zero errors (show summary or "clean")
  • Type check output: no errors (show tsc --noEmit or equivalent)
  • Final sanity: no console.log, no unexplained TODO, no hardcoded values

Read the full file on GitHub · 79 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. 6d ago First seen · 79 lines · 23 tokens per session scan A 2526c2790237

Subscribe to this mod's changes

verify is a skill published in the GitHub repository epicsagas/epic-harness (18 stars, last pushed today), licensed Apache-2.0. It adds 23 tokens to every session and 692 once invoked, about $0.0001 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 2026-08-30.

Related

Other skills, from other repositories

autonomous-loops

Patterns and architectures for autonomous Claude Code loops — from simple sequential pipelines to RFC-driven multi-agent DAG systems.

affaan-m/ECC · 26 tokens

deployment-patterns

Deployment workflows, CI/CD pipeline patterns, Docker containerization, health checks, rollback strategies, and production readiness checklists for web applications. Use when setting up deployment infrastructure or planning releases.

affaan-m/ECC · 41 tokens

ci-workflow-guide

Guide to SGLang CI workflow orchestration — stage ordering, fast-fail, gating, partitioning, execution modes, and debugging CI failures. Use when modifying CI workflows, adding stages, debugging CI pipeline issues, or understanding how tests are dispatched and gated across stages.

sgl-project/sglang · 60 tokens

babysit-pr-to-pass-ci

Start and persistently pursue a goal to babysit an SGLang pull request until selected GitHub Actions workflows pass on the latest PR head. Use when asked to monitor, babysit, retry, or fix PR CI for lint.yml, pr-test.yml, pr-test-extra.yml, AMD, or other named workflows; classify failures as PR-related versus flaky or…

sgl-project/sglang · 110 tokens

sglang-bisect-ci-regression

Investigate consistently failing SGLang CI tests by extracting the failure signature from scheduled or rerun workflows, bisecting the passing/failing commit window, checking runner or hardware specificity, and optionally reproducing on a remote GPU host.

sgl-project/sglang · 56 tokens

baby-sit

Monitor a GitHub pull request until CI is green, diagnose failures, and rerun only evidence-backed flaky GitHub Actions jobs.

langchain-ai/open-swe · 30 tokens