run-affected-test-file-in-isolation-and-in-co-run-with-its-test-

run-affected-test-file-in-isolation-and-in-co-run-with-its-test- is a skill for OpenCode from ZaxbyHub/opencode-swarm. It costs 36 tokens per session (435 once invoked), scanned A, original, MIT.

A testing procedure for running a changed test file by itself and together with its neighboring test files after changing mock cleanup.

In plain words
What is it for?
Use it after mock cleanup changes, especially changes involving afterEach or shared mock state.
Why use it?
It catches problems where tests pass alone but interfere with one another when run together.

Skill for OpenCode

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

Good fit Use it after mock cleanup changes, especially changes involving afterEach or shared mock state.

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Install with agentmods
npx agentmods add skills/zaxbyhub/opencode-swarm/run-affected-test-file-in-isolation-and-in-co-run-with-its-test
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 ZaxbyHub/opencode-swarm --skill run-affected-test-file-in-isolation-and-in-co-run-with-its-test
Clone the repo
git clone --depth 1 https://github.com/ZaxbyHub/opencode-swarm

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.

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README.md
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Your own site
<a href="https://agentmods.dev/skills/zaxbyhub/opencode-swarm/run-affected-test-file-in-isolation-and-in-co-run-with-its-test"><img src="https://agentmods.dev/badge/skills/zaxbyhub/opencode-swarm/run-affected-test-file-in-isolation-and-in-co-run-with-its-test/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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/zaxbyhub/opencode-swarm/run-affected-test-file-in-isolation-and-in-co-run-with-its-test"><img src="https://agentmods.dev/badge/skills/zaxbyhub/opencode-swarm/run-affected-test-file-in-isolation-and-in-co-run-with-its-test.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 435 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00036 $0.00435
Opus 5 $0.00018 $0.00217
Sonnet 5 $0.00007 $0.00087
Haiku 4.5 $0.00004 $0.00044

Measured 9d ago against content hash 82a618e62b2d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

run-affected-test-file-in-isolation-and-in-co-run-with-its-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 9d 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.

.opencode/skills/generated/run-affected-test-file-in-isolation-and-in-co-run-with-its-test/SKILL.md · 50 lines

What it actually says

run affected test file in isolation AND in co-run with its test-suite peers after mock cleanup changes

Trigger

  • (no explicit trigger metadata; cluster derived from category/tags)

Required Procedure

  • run affected test file in isolation AND in co-run with its test-suite peers after mock cleanup changes

Forbidden Shortcuts

  • add top-level afterEach mock.restore without verifying co-run with sibling test files

Delegation Template

When delegating a task affected by this skill, include:

SKILLS: file:.opencode/skills/generated/run-affected-test-file-in-isolation-and-in-co-run-with-its-test-/SKILL.md

Reviewer Checks

  • Verify each required action above appears in the diff.

Test Engineer Checks

  • Add or update tests covering the trigger condition and the forbidden shortcut.

Source Knowledge IDs

  • 1b7d37db-81d1-4b0d-90ab-85a7e68f90bf — In Bun, adding afterEach(() => mock.restore()) to fix mock isolation can break co-run with sibling test files that depend on leaked mock state. Always verify both isolated and co-run behavior before committing mock cleanup changes.
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. 9d ago First seen · 50 lines · 36 tokens per session scan A 82a618e62b2d

Subscribe to this mod's changes

run-affected-test-file-in-isolation-and-in-co-run-with-its-test- is a skill published in the GitHub repository ZaxbyHub/opencode-swarm (467 stars, last pushed today), licensed MIT. It adds 36 tokens to every session and 435 once invoked, about $0.0002 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 2026-09-03.