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.
npx skills add petrkindlmann/qa-skills --skill exploratory-testinggit clone --depth 1 https://github.com/petrkindlmann/qa-skillsWrote 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.
[](https://agentmods.dev/skills/petrkindlmann/qa-skills/exploratory-testing)<a href="https://agentmods.dev/skills/petrkindlmann/qa-skills/exploratory-testing"><img src="https://agentmods.dev/badge/skills/petrkindlmann/qa-skills/exploratory-testing.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00152 | $0.04346 |
| Opus 5 | $0.00076 | $0.02173 |
| Sonnet 5 | $0.00030 | $0.00869 |
| Haiku 4.5 | $0.00015 | $0.00435 |
Grade A, and why
exploratory-testing 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 314 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Quick Route
Match the situation to a charter pattern and the reference section to open.
| Situation | Charter pattern | Open in references |
|---|---|---|
| New feature — learn it, find requirement gaps | "Explore [feature] with various roles/data to discover requirement gaps and unexpected behaviors" | Charter examples + session flow in session-templates.md; boundary/"what if" banks in heuristics-and-automation.md |
| Regression — a change just landed | "Explore [area] after [change] to discover regressions at integration points" | State-transition heuristics in heuristics-and-automation.md |
| Bug investigation — vague report ("sometimes slow") | "Explore [area] with [reported conditions] to discover exact reproduction steps" | Session flow + session-log template in session-templates.md; error-handling heuristics in heuristics-and-automation.md |
Full time splits for each row are in Session Planning by Context below.
Discovery Questions
Before designing a session, gather context. Check .agents/qa-project-context.md first -- if it exists, use it as the foundation and skip questions already answered there.
Target Area
- What feature, module, or flow is the exploration target?
- Is this a new feature (discovery mode) or existing feature (regression mode)?
- What is the most recent change to this area?
- Are there known risk areas or previous bug clusters here? (See
risk-based-testingfor risk data.)
Hypotheses and Suspicions
- What do you think might break? (Hunches are valid starting points.)
- What did the developer say was tricky or uncertain?
- Are there areas the automated suite does not cover?
- Have users reported issues in this area before?
What ships with it
2 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.
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.
- 7d ago First seen · 314 lines · 152 tokens per session scan A c0dd7d003ef4
exploratory-testing is a skill published in the GitHub repository petrkindlmann/qa-skills (110 stars, last pushed 2mo ago), licensed MIT. It adds 152 tokens to every session and 4,346 once invoked, about $0.0008 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 2026-08-30.
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