verification-loop-skill

verification-loop-skill is a skill for OpenCode from darellchua2/opencode-config-template. It costs 22 tokens per session (2,604 once invoked), scanned C, original, Apache-2.0.

A workflow for checking software changes against requirements and acceptance criteria throughout development. It creates checkpoints, tracks each requirement, checks for regressions, and reports verification status.

In plain words
What is it for?
Use it to validate features, run requirement checks, define checkpoints, and support development workflows such as TDD, where tests guide implementation.
Why use it?
It helps catch missed requirements and broken existing behavior before changes are committed or released.

Skill for OpenCode

Written for OpenCode: installed under .opencode/. Also seen: mentions OpenCode.

Good fit Use it to validate features, run requirement checks, define checkpoints, and support development workflows such as TDD, where tests guide implementation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/darellchua2/opencode-config-template/verification-loop-skill
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.

Any agent
npx skills add darellchua2/opencode-config-template --skill verification-loop-skill
Clone the repo
git clone --depth 1 https://github.com/darellchua2/opencode-config-template

Made for: OpenCode.

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-loop-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/darellchua2/opencode-config-template/verification-loop-skill.svg)](https://agentmods.dev/skills/darellchua2/opencode-config-template/verification-loop-skill)
Your own site
<a href="https://agentmods.dev/skills/darellchua2/opencode-config-template/verification-loop-skill"><img src="https://agentmods.dev/badge/skills/darellchua2/opencode-config-template/verification-loop-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,604 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00022 $0.02604
Opus 5 $0.00011 $0.01302
Sonnet 5 $0.00004 $0.00521
Haiku 4.5 $0.00002 $0.00260

Measured 4d ago against content hash 6866c9d5d3ed, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade C, and why

verification-loop-skill scanned grade C with 1 finding 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

9. **Iteration safety**: bounded-by-default (`Iterations: 25`); safety blocks `.env`, `node_modules/`, `rm -rf`, `git push --force`. See `autoresearch-core-skill/references/iteration-safety.md`.
opencode_app/.opencode/skills/verification-loop-skill/SKILL.md · 310 lines

How it starts

The opening of the file, as written. The whole thing — 310 lines — stays where its author put it; the contents beside it link to each section on GitHub.

What I do

I provide continuous verification of implementations against defined requirements throughout the development cycle:

  1. Checkpoint Creation: Define verification checkpoints at key stages of implementation
  2. Requirement Tracking: Map each requirement to verifiable conditions
  3. Automated Verification: Check implementations against acceptance criteria automatically
  4. Regression Detection: Verify that new changes don't break existing functionality
  5. Progress Reporting: Track verification status across all requirements over time

When to use me

Use this skill when:

  • You want to verify implementation against acceptance criteria before committing
  • You're working on a feature with clear requirements and want continuous validation
  • You need to ensure no requirements are missed during implementation
  • You want to catch regressions as soon as they happen
  • You're doing TDD/BDD and want structured verification beyond unit tests

Trigger phrases:

  • "verify implementation"
  • "check against requirements"
  • "run verification"
  • "validate against criteria"
  • "checkpoint"

Core Workflow

Step 1: Define Verification Scope

Establish what needs to be verified:

## Verification Scope

### Source of Truth
- Issue/PLAN file: [reference]
- Acceptance criteria: [list]
- Requirements: [list]

### Files in Scope
| File | Purpose | Criteria Covered |
|------|---------|-----------------|
| src/auth/login.ts | Login handler | AC-1, AC-2 |
| src/auth/session.ts | Session management | AC-3, AC-4 |
| tests/auth.test.ts | Test coverage | AC-5 |

### Verification Levels
1. **Syntax** — Code compiles/types correctly
2. **Functional** — Code does what it should
3. **Integration** — Code works with other components
4. **Acceptance** — Code meets all acceptance criteria
5. **Non-regression** — Existing features still work

Step 2: Create Verification Checkpoints

Define checkpoints aligned with implementation phases:

## Checkpoints

### Checkpoint 1: Structure
- [ ] All required files exist
- [ ] File structure follows conventions
- [ ] Types/interfaces defined correctly
- [ ] No syntax errors

### Checkpoint 2: Core Logic
- [ ] Main functionality implemented
- [ ] Edge cases handled
- [ ] Error paths covered
- [ ] Input validation present

### Checkpoint 3: Tests
- [ ] Unit tests written
- [ ] Integration tests written (if applicable)
- [ ] Edge case tests present
- [ ] All tests passing

### Checkpoint 4: Acceptance
- [ ] AC-1: [description] — verified
- [ ] AC-2: [description] — verified
- [ ] AC-3: [description] — verified

### Checkpoint 5: Non-Regression
- [ ] Existing tests still pass
- [ ] No new lint errors
- [ ] No type errors
- [ ] Build succeeds

Read the full file on GitHub · 310 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 · 310 lines · 22 tokens per session scan C 6866c9d5d3ed

Subscribe to this mod's changes

verification-loop-skill is a skill published in the GitHub repository darellchua2/opencode-config-template (6 stars, last pushed 2d ago), licensed Apache-2.0. It adds 22 tokens to every session and 2,604 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.