test-generate

test-generate is a skill for Claude Code from hamr0/agentic-toolkit. It costs 11 tokens per session (734 once invoked), scanned A, a copy of test-generate, Apache-2.0.

A test-writing and test-running workflow for a specified file. It finds the project's existing test tool and conventions, adds tests for normal cases, edge cases, and failures, then runs the new tests.

In plain words
What is it for?
Use it to add tests around existing code and verify those tests with the project's real test command.
Why use it?
It avoids guessing which test tool or style a project uses and catches problems that file generation alone would miss. It also prevents changing production code just to make a test possible.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to add tests around existing code and verify those tests with the project's real test command.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hamr0/agentic-toolkit/test-generate
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 hamr0/agentic-toolkit --skill test-generate
Clone the repo
git clone --depth 1 https://github.com/hamr0/agentic-toolkit

Made for: Claude Code.

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 test-generate

README.md
[![agentmods](https://agentmods.dev/badge/skills/hamr0/agentic-toolkit/test-generate/github.svg)](https://agentmods.dev/skills/hamr0/agentic-toolkit/test-generate)
Your own site
<a href="https://agentmods.dev/skills/hamr0/agentic-toolkit/test-generate"><img src="https://agentmods.dev/badge/skills/hamr0/agentic-toolkit/test-generate/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for test-generate

Your own site · 80×15
<a href="https://agentmods.dev/skills/hamr0/agentic-toolkit/test-generate"><img src="https://agentmods.dev/badge/skills/hamr0/agentic-toolkit/test-generate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 11 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 734 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 $0.00011 $0.00734
Opus 5 $0.00005 $0.00367
Sonnet 5 $0.00002 $0.00147
Haiku 4.5 $0.00001 $0.00073

Measured 3d ago against content hash 6696cdf94880, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

test-generate 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.

Origin

This is a copy

100% identical to test-generate — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

ai/subagentic/ampcode/skills/test-generate/SKILL.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Generate tests for $ARGUMENTS, then run them. This is a generate → run → verify loop, not just file generation.

1. Discover

  • Detect the test framework already in use (look for jest.config*, vitest.config*, pytest.ini / pyproject.toml [tool.pytest], Go's _test.go convention, Cargo.toml [dev-dependencies], etc.). Never add a new framework or runner.
  • Skim 1–2 existing test files near the target to mirror style, fixtures, setup/teardown, assertion style, and naming convention.

2. Generate

Cover:

  • Happy path (expected usage)
  • Edges (empty / null / boundary / malformed)
  • Errors (invalid input, IO / network / DB failures)

Match existing patterns:

  • Same framework, same fixture style, same naming convention.
  • Reuse existing setup/teardown helpers; do not add new mock libraries or new test-runner config.
  • Do not add test-only public methods or exports to production code to make a test possible — if the test wants a hook the prod code doesn't expose, stop and ask.

3. Run

Execute the project's real test command, scoped to just the new tests (-t <name>, --testPathPattern, pytest path/to/test.py, go test ./pkg, etc.). Report:

  • Pass / fail counts.
  • Any failure with the assertion message and file:line.

4. Verify the tests BITE

A test that passes is not the same as a test that exercises the code. For each new test, confirm:

  • It would fail if the function under test returned the wrong value. Mentally swap a broken impl — does the assertion actually catch it?
  • It isn't expect(true).toBe(true), expect(fn).toBeDefined(), or a mock asserting itself.
  • It isn't passing only because the setup masked the real call.

Mark each new test biting or superficial (with reason). Superficial tests count as a failure to ship — either fix or delete.

5. Report

  • Files added / modified.
  • Pass / fail.
  • Biting vs superficial breakdown.
  • What was deliberately not tested, and why (third-party shims, trivial getters/setters, generated code). Documented gaps beat fake coverage.

Read the full file on GitHub · 68 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 · 68 lines · 11 tokens per session scan A 6696cdf94880

Subscribe to this mod's changes

test-generate is a skill published in the GitHub repository hamr0/agentic-toolkit (22 stars, last pushed 4d ago), licensed Apache-2.0. It adds 11 tokens to every session and 734 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to test-generate, differing in 0 lines, and is treated as a copy.

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