verify

verify is a skill for Claude Code, Codex from fakoli/fakoli-plugins. It costs 17 tokens per session (2,923 once invoked), scanned A, original, MIT.

A verification procedure for checking completed coding work with commands and recorded evidence. It selects checks based on the project's language, such as TypeScript, Rust, or Python.

In plain words
What is it for?
Use it after implementation to detect the project language, run suitable validation commands, and produce a pass-or-fail scorecard.
Why use it?
It replaces unverified claims with fresh command results showing whether the relevant checks passed or failed.

Skill for Claude CodeCodex

Part of the fakoli-flow plugin — 6 skills, 1 command, 3 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/fakoli/fakoli-plugins/verify
Any agent
npx skills add fakoli/fakoli-plugins --skill verify
Clone the repo
git clone --depth 1 https://github.com/fakoli/fakoli-plugins

Made for: Claude Code, Codex.

Or install fakoli-flow, the plugin that ships this one along with the rest of its 6 skills, 1 command, 3 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/fakoli/fakoli-plugins/verify.svg)](https://agentmods.dev/skills/fakoli/fakoli-plugins/verify)
Your own site
<a href="https://agentmods.dev/skills/fakoli/fakoli-plugins/verify"><img src="https://agentmods.dev/badge/skills/fakoli/fakoli-plugins/verify.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,923 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 $0.00017 $0.02923
Opus 5 $0.00009 $0.01461
Sonnet 5 $0.00003 $0.00585
Haiku 4.5 $0.00002 $0.00292

Measured 3d ago against content hash b3ef2769949c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 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/fakoli-flow/skills/verify/SKILL.md · 321 lines

How it starts

The opening of the file, as written. The whole thing — 321 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verify (/fakoli-flow:verify)

Overview

Verification is not an opinion. It is a command you ran, output you read, and a result you can cite.

Core principle: Every PASS must cite fresh command output from this session. Every FAIL must cite what the output actually showed.

This skill is invoked:

  • Automatically after /fakoli-flow:execute completes
  • Manually when the user runs /fakoli-flow:verify
  • By /fakoli-flow:quick after the agent finishes

Step 1: Detect Project Language

Run the following to determine which verification commands apply:

# Check for language markers in order of specificity
[ -f tsconfig.json ] && echo "TypeScript"
[ -f Cargo.toml ] && echo "Rust"
{ [ -f pyproject.toml ] || [ -f setup.py ]; } && echo "Python"
Marker file Language
tsconfig.json or package.json TypeScript
Cargo.toml Rust
pyproject.toml or setup.py Python

If multiple markers exist, prefer the most specific: tsconfig.json > package.json.

If no marker is found: ask the user before proceeding.


Step 2: Run Language-Appropriate Checks

Run the full command for the detected language. Do not split it. Do not skip a step because the previous one passed.

TypeScript:

npx tsc --noEmit && bun test

Python:

ruff check . && mypy . && pytest

Rust:

cargo check && cargo test

Capture the full output of each command. Read exit codes. Count errors explicitly — do not skim.


Step 3: Dispatch Sentinel (if fakoli-crew is available)

If fakoli-crew is installed, dispatch the sentinel agent with the acceptance criteria from the plan.

How to find the plan:

ls docs/plans/ | sort | tail -1

Read the most recent plan file. Extract the acceptance criteria for each task (the **Acceptance criteria:** bullet points under each task heading).

If multiple plans exist for the current date: Do not guess. Ask the user:

Multiple plans found for today:
- docs/plans/2026-04-04-feature-a.md
- docs/plans/2026-04-04-feature-b.md
Which plan should I verify against?

Read the full file on GitHub · 321 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 · 321 lines · 17 tokens per session scan A b3ef2769949c

Subscribe to this mod's changes

verify is a skill published in the GitHub repository fakoli/fakoli-plugins (4 stars, last pushed 25d ago), licensed MIT. It adds 17 tokens to every session and 2,923 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 2026-08-31.

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