context-driven-testing

context-driven-testing is a skill for Claude Code from proffesor-for-testing/agentic-qe. It costs 42 tokens per session (1,224 once invoked), scanned A, original, MIT.

A guide to choosing testing practices according to a project's risks, goals, time, budget, and team skills. It treats testing as investigation for finding important problems, rather than simply running a fixed checklist.

In plain words
What is it for?
Use it when selecting a testing approach, reviewing established habits, adapting to project constraints, or planning exploratory testing.
Why use it?
It avoids applying the same so-called best practice to every project. This helps teams spend testing effort where it reduces the most relevant risks.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Part of the agentic-qe plugin — 41 skills, 143 commands, 10 agents, 10 hooks, 1 plugin shipped together

Good fit Use it when selecting a testing approach, reviewing established habits, adapting to project constraints, or planning exploratory testing.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/proffesor-for-testing/agentic-qe/context-driven-testing
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 proffesor-for-testing/agentic-qe --skill context-driven-testing
Clone the repo
git clone --depth 1 https://github.com/proffesor-for-testing/agentic-qe

Made for: Claude Code.

Or install agentic-qe, the plugin that ships this one along with the rest of its 41 skills, 143 commands, 10 agents, 10 hooks, 1 plugin.

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 context-driven-testing

README.md
[![agentmods](https://agentmods.dev/badge/skills/proffesor-for-testing/agentic-qe/context-driven-testing/github.svg)](https://agentmods.dev/skills/proffesor-for-testing/agentic-qe/context-driven-testing)
Your own site
<a href="https://agentmods.dev/skills/proffesor-for-testing/agentic-qe/context-driven-testing"><img src="https://agentmods.dev/badge/skills/proffesor-for-testing/agentic-qe/context-driven-testing/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 context-driven-testing

Your own site · 80×15
<a href="https://agentmods.dev/skills/proffesor-for-testing/agentic-qe/context-driven-testing"><img src="https://agentmods.dev/badge/skills/proffesor-for-testing/agentic-qe/context-driven-testing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,224 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 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 $0.00042 $0.01224
Opus 5.5 $0.00017 $0.00490
Sonnet 5.5 $0.00008 $0.00245
Haiku 4.5 $0.00004 $0.00122

Measured 8d ago against content hash e95df1b33634, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

context-driven-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 8d 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

Copies of this mod

1 near-identical copy found in the catalogue:

.claude/skills/context-driven-testing/SKILL.md · 158 lines

How it starts

The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Context-Driven Testing

<default_to_action> When making testing decisions or adapting approaches:

  1. ANALYZE context: project goals, constraints, risks, team skills
  2. QUESTION practices: "Why this? What risk does it address? What's the cost?"
  3. INVESTIGATE not just check: Does software solve the problem, or create new ones?
  4. ADAPT approach based on context, not "best practices"
  5. DOCUMENT discoveries, not pre-written plans

Quick Context Analysis:

  • Mission: "Find important problems fast enough to matter" (not "execute test cases")
  • Risk: Safety-critical = high rigor; internal tool = lighter touch
  • Constraints: Startup with tight timeline ≠ enterprise with compliance
  • Skills: Novice needs structure; expert adapts intuitively

Critical Success Factors:

  • No "best practices" work everywhere - only good practices in context
  • Testing is investigation, not script execution
  • Context changes; your approach should too </default_to_action>

Quick Reference Card

When to Use

  • Making testing decisions for new project
  • Questioning "that's how it's done" dogma
  • Adapting approach to specific constraints
  • Exploratory testing sessions

RST Heuristics

Heuristic Application
SFDIPOT Structure, Function, Data, Interfaces, Platform, Operations, Time
Oracles Consistency with history, similar products, expectations, docs
Tours Business District, Historical, Bad Neighborhood, Tourist, Museum

Context-Driven Decisions

Example: Test Automation Level

Startup Context:

  • Small team, rapid changes, unclear product-market fit
  • Decision: Light automation on critical paths, heavy exploratory
  • Rationale: Requirements change too fast for extensive automation

Enterprise Context:

  • Stable features, regulatory requirements, large team
  • Decision: Comprehensive automated regression suite
  • Rationale: Stability allows automation investment to pay off

Example: Documentation

Read the full file on GitHub · 158 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. 8d ago First seen · 158 lines · 42 tokens per session scan A e95df1b33634

Subscribe to this mod's changes

context-driven-testing is a skill published in the GitHub repository proffesor-for-testing/agentic-qe (505 stars, last pushed yesterday), licensed MIT. It adds 42 tokens to every session and 1,224 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-11.

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