openplan-test

openplan-test is a skill for Claude Code, Codex from BANANASJIM/openplan-skill. It costs 73 tokens per session (893 once invoked), scanned A, original, MIT.

A testing workflow that chooses suitable checks and reports evidence for an OpenPlan-style software change. TDD means writing tests before code; this workflow covers testing more broadly and does not require that order.

In plain words
What is it for?
It helps select test layers, evaluate regression tests, create minimal reproductions for bugs, compare behavior with fixtures or reference results, and record skipped checks and remaining risk.
Why use it?
It connects each test to a specific failure risk and separates quick checks from expensive or restricted checks, avoiding confidence based only on broad test runs.

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/bananasjim/openplan-skill/openplan-test
Any agent
npx skills add BANANASJIM/openplan-skill --skill openplan-test
Clone the repo
git clone --depth 1 https://github.com/BANANASJIM/openplan-skill

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 openplan-test

README.md
[![agentmods](https://agentmods.dev/badge/skills/bananasjim/openplan-skill/openplan-test.svg)](https://agentmods.dev/skills/bananasjim/openplan-skill/openplan-test)
Your own site
<a href="https://agentmods.dev/skills/bananasjim/openplan-skill/openplan-test"><img src="https://agentmods.dev/badge/skills/bananasjim/openplan-skill/openplan-test.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 893 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 $0.00073 $0.00893
Opus 5 $0.00036 $0.00447
Sonnet 5 $0.00015 $0.00179
Haiku 4.5 $0.00007 $0.00089

Measured 3d ago against content hash 41da96cd3b26, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

openplan-test 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/validate_test_report.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/openplan-test/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OpenPlan Test

Use this after $openplan-core when a task needs test strategy, regression proof, quality evidence, or auto/YOLO verification. Testing is evidence for the human and reviewer; it is not approval.

Core Rule

Tests must answer a risk question. Do not run broad commands just to create confidence theater, and do not claim success when the important risk was not exercised.

When To Use

Use this skill when asked to:

  • create or refine a test framework for a project;
  • decide which checks are proportional for a change;
  • add or evaluate regression tests;
  • verify an auto/YOLO implementation before review;
  • classify skipped checks and residual risk;
  • turn a found bug into a minimal reproducing test;
  • compare implementation behavior with fixtures, properties, reference models, or formal/independent oracles.

Do not use it as a substitute for $openplan-review. Passing tests are input to review, not a review result.

Test Flow

  1. State the test goal in terms of the human goal/intent and the failure mode being controlled.
  2. Load local test instructions, build scripts, CI config, and nearby tests only as needed.
  3. Build a test map with references/framework.md: commands, dependencies, privilege/environment needs, skip behavior, failure diagnostics, and CI/release treatment.
  4. Identify test layers:
    • fast local checks;
    • safety/sanitizer/adversarial checks;
    • integration or environment-touching checks;
    • end-to-end checks;
    • oracle, property, metamorphic, fixture, or corpus checks.
  5. Choose the smallest layer set that can exercise the risk.
  6. For every new or changed regression test, prove it is real:
    • it fails against the old behavior, baseline, or bug-reproducing fixture;
    • it passes against the candidate fix;
    • if direct baseline execution is impossible, state the equivalent proof and residual uncertainty.
  7. Check for self-deception risks: decorative tests, weak assertions, silent skips, golden files generated by the same code under test, and tests present but not wired into the runner.
  8. Keep the fix minimal relative to the proven test. Do not add abstractions only because the test exists.
  9. Report checks run, checks skipped, why skipped, and what confidence each check actually supports.
  10. Route results:
  • implementation issue -> bounded fix task if explicitly authorized;
  • review evidence -> $openplan-review;
  • durable lesson or testing convention -> $openplan-record;
  • broad docs/test framework docs -> $openplan-garden;
  • continuation risk -> $openplan-handoff.

Read the full file on GitHub · 81 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 81 lines · 73 tokens per session scan A 41da96cd3b26

Subscribe to this mod's changes

openplan-test is a skill published in the GitHub repository BANANASJIM/openplan-skill (4 stars, last pushed 3mo ago), licensed MIT. It adds 73 tokens to every session and 893 once invoked, about $0.0004 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.