Skill2 Test
Use when checking whether a skill activates, avoids false activation, improves outcomes, or works in an isolated agent environment.
Install
$ agentstack add skill-blackblue-labs-skill2-skill2-test ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-blackblue-labs-skill2-skill2-test) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Test Agent Skills
Measure behavior without inheriting current chat, global memory, or unrelated Skills.
Ownership
- Test owns live activation, outcome, routing, and baseline evidence.
- Audit owns static structure and trigger-overlap review.
- Create owns Skill changes; Test never rewrites a failing Skill automatically.
Layers
| Layer | Installed Skills | Measures | | --- | --- | --- | | Target-only | Target Skill only | Activation, outcome, baseline uplift | | Pack | Candidate sibling Skills | Routing and false activation |
Use target-only for core outcomes. Use pack for adjacent and unrelated routing cases.
Cases
- Core positive: target should activate and produce required artifact or answer.
- Paraphrase: same intent, different wording.
- Adjacent: sibling should own request.
- Unrelated: no package Skill should activate.
- Assertions: inspect files, output, commands, or explicit events.
Default one trial. Add repetitions only for known nondeterminism or regression confidence.
Isolation
- Fresh session, temporary home, temporary workspace.
- Install only layer-required Skills.
- Minimal authentication/configuration; no user memory or chat history.
- Guard host-home reads and writes.
- Adapter owns harness-specific install and event parsing.
- Save raw events, final output, workspace, version, and Skill hash locally.
Verdicts
pass: activation and outcome assertions pass.fail: deterministic assertion fails.inconclusive: runner or evidence cannot support claim.- Baseline also passes: no demonstrated deterministic uplift.
- Exact isolated
SKILL.mdread is medium-confidence activation; explicit activation event is high confidence.
Fake runner tests validate adapter plumbing, not provider behavior. Never claim unrun results.
uv run --script /scripts/run -- test skills/ --agent --cases cases/.yaml --baseline
uv run --script /scripts/run -- test skills/ --agent --cases cases/.yaml --packSource & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: blackblue-labs
- Source: blackblue-labs/skill2
- License: MIT
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.