Claude Skill MartBrowse skillsQuick linesLearn by videoTerminal guideWhat is a Skill?
 
← Back to list

TestDriver Cache Tuning

A reference skill for configuring TestDriver AI's screenshot-based cache to speed up repeated test runs.

Dev & CodingIntermediate★ 240⑂ 36AI score 7/10Last updated: Aug 16, 2026

What it does

Gives Claude an accurate model of the TestDriver SDK cache system so it can write and fix cache configuration.

  • Screen cache: pixel-diff comparison against the cached screenshot (default 5%)
  • Element cache: OpenCV TM_CCOEFF_NORMED template matching to re-verify position (default 0.8)
  • A threshold priority table: per-command option > legacy numeric arg > constructor config > defaults
  • How the auto cacheKey works (first 16 hex chars of the test file's SHA-256) and why it self-invalidates
  • Disabling via cache: false or TD_NO_CACHE=true
  • Reading getDebugInfo() fields: cacheHit, similarity, cacheSimilarity

Who it's for

  • QA engineers and developers running TestDriver AI E2E tests who want faster runs and fewer AI calls
  • Anyone debugging chronic cache misses or false cache hits that make tests pass incorrectly
  • CI owners who need to understand cache partitioning by OS and screen resolution

Examples

  1. "The submit button find keeps re-calling the AI" → generates a per-command override with screen: 0.01, element: 0.95
  2. "Disable caching only in CI" → shows TD_NO_CACHE=true npx vitest run
  3. "Why did this miss?" → walks through el.getDebugInfo() and compares similarity/cacheSimilarity against configured thresholds

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/testdriverai/testdriverai/HEAD/ai/skills/testdriver-cache/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the ai/skills/testdriver-cache folder from the GitHub repo testdriverai/testdriverai into my ~/.claude/skills/testdriver-cache/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/testdriverai/testdriverai.git /tmp/testdriverai && mkdir -p ~/.claude/skills/testdriver-cache && cp -r /tmp/testdriverai/ai/skills/testdriver-cache/* ~/.claude/skills/testdriver-cache/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repository: git clone https://github.com/testdriverai/testdriverai.git /tmp/testdriverai
  3. Create the skill folder: mkdir -p ~/.claude/skills/testdriver-cache
  4. Copy the skill files: cp -r /tmp/testdriverai/ai/skills/testdriver-cache/* ~/.claude/skills/testdriver-cache/
  5. Restart Claude Code and confirm testdriver:cache appears in your skill list.
  6. In a project that uses the TestDriver SDK, ask something like "tune my cache thresholds" to verify it triggers.
View source on GitHub ↗