verification-gates

verification-gates is a skill for Claude Code, Codex from rohitg00/skillkit. It costs 94 tokens per session (1,574 once invoked), scanned A, original, Apache-2.0.

A guide for adding checkpoints between project phases so requirements, designs, and completed work are checked before the next phase begins.

In plain words
What is it for?
Use it to define requirements reviews, design checks, milestone approvals, go or no-go decisions, and other validation steps in a multi-stage project.
Why use it?
It catches unclear assumptions and errors early, reducing the chance that one mistake spreads through later work.

Skill for Claude CodeCodex

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/rohitg00/skillkit/verification-gates
Any agent
npx skills add rohitg00/skillkit --skill verification-gates
Clone the repo
git clone --depth 1 https://github.com/rohitg00/skillkit

Made for: Claude Code, Codex.

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 verification-gates

README.md
[![agentmods](https://agentmods.dev/badge/skills/rohitg00/skillkit/verification-gates.svg)](https://agentmods.dev/skills/rohitg00/skillkit/verification-gates)
Your own site
<a href="https://agentmods.dev/skills/rohitg00/skillkit/verification-gates"><img src="https://agentmods.dev/badge/skills/rohitg00/skillkit/verification-gates.svg" alt="Measured on agentmods" height="20"></a>
Per session 94 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,574 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 $0.00094 $0.01574
Opus 5 $0.00047 $0.00787
Sonnet 5 $0.00019 $0.00315
Haiku 4.5 $0.00009 $0.00157

Measured 4d ago against content hash 8562805acb1b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

verification-gates 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 4d 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.

packages/core/src/methodology/packs/planning/verification-gates/SKILL.md · 282 lines

How it starts

The opening of the file, as written. The whole thing — 282 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verification Gates

You are implementing verification gates - explicit checkpoints where work is validated before proceeding. This prevents cascading errors and ensures quality at each phase.

Core Principle

Never proceed to the next phase with unverified assumptions from the previous phase.

A verification gate is a deliberate pause to confirm that prerequisites are met before continuing.

Standard Verification Gates

Gate 1: Requirements Verification

Before starting design:

  • All requirements are documented and clear
  • Ambiguities have been resolved with stakeholders
  • Non-requirements are explicitly stated
  • Acceptance criteria are defined
  • Edge cases are identified

Actions:

  1. Review requirements document
  2. Identify any unclear items
  3. Get explicit confirmation on ambiguous points
  4. Document answers

Gate 2: Design Verification

Before starting implementation:

  • Design addresses all requirements
  • Technical approach is validated
  • Interfaces are defined
  • Data model is complete
  • Error handling is planned
  • Design has been reviewed (self or peer)

Actions:

  1. Walk through design against requirements
  2. Review with rubber duck or teammate
  3. Check for missing pieces
  4. Get approval to proceed

Gate 3: Implementation Verification

Before calling task complete:

  • Code compiles/runs without errors
  • All tests pass
  • New code has test coverage
  • Code follows project conventions
  • No obvious bugs or issues
  • Dependencies are appropriate

Actions:

  1. Run full test suite
  2. Self-review the diff
  3. Check for code smells
  4. Verify against acceptance criteria

Gate 4: Integration Verification

Before merging:

  • Feature works end-to-end
  • Integration tests pass
  • No regression in existing functionality
  • Performance is acceptable
  • Documentation is updated

Actions:

  1. Test the full user flow
  2. Run integration test suite
  3. Compare performance metrics
  4. Review documentation changes

Read the full file on GitHub · 282 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. 4d ago First seen · 282 lines · 94 tokens per session scan A 8562805acb1b

Subscribe to this mod's changes

verification-gates is a skill published in the GitHub repository rohitg00/skillkit (1,480 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 94 tokens to every session and 1,574 once invoked, about $0.0005 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.