principle-testing SKILL.md skillA
principle-testing from lugassawan/swe-workbench is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lugassawan/swe-workbench/principle-testing@git:20260828.71a6399Pins git:20260828.71a6399 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lugassawan/swe-workbench
- Path
skills/principle-testing/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260828.71a6399, committed Aug 28, 2026
- First version recorded
- May 8, 2026
- Size
- 6,568 bytes
- Repository stars
- 3
- License
- MIT
Testing strategy and architecture — test pyramid (unit / integration / e2e), test doubles taxonomy (stub / mock / spy / fake), coverage-vs-confidence, mutation testing, flaky-test triage, contract testing, fixtures and test data builders. Distinct from principle-tdd which covers the red-green-refactor micro-cycle. Auto-load when discussing test strategy, mock vs real dependency, coverage adequacy, test pyramid balance, flaky test diagnosis, or test architecture.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
<!-- preload-canary: SWB-PRELOAD-PRINCIPLE-TESTING --> # Testing Strategy and Architecture Strategy and architecture, not the red-green-refactor discipline. For that, see `swe-workbench:principle-tdd`. ## The pyramid Three tiers, wide base up: **unit → integration → e2e**. Baseline ratio: ~70% unit, ~20% integration, ~10% e2e — adjust toward more integration for infrastructure-heavy systems, more e2e for UI-heavy products. Inverting the pyramid (heavy e2e, thin unit) produces a slow, brittle suite — e2e tests amplify flakiness and punish every external dependency. - **Unit** — one class or function, no I/O, milliseconds. - **Integration** — two or more collaborators, real infrastructure (DB, message bus), seconds. - **e2e** — full stack through the UI or API gateway; minutes. Prefer more granular tests. One integration test that exercises a migration is worth more than five e2e tests covering the same path. ## Test doubles Five kinds (Meszaros's xUnit Patterns taxonomy). State-based: Stub, Fake. Behavior-verification: Spy, Mock. Dummy is a degenerate no-op. | Double | What it does | When to use | |--------|-------------|-------------| …
Read the whole file at its exact version.
How to install
mdr add lugassawan/swe-workbench/principle-testing@sha256:6d7215f8e5144f42The line at the top of this page pins the label git:20260828.71a6399, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_wlbvp573dqvzl2me)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between May 8, 2026 and Aug 28, 2026, about one every 37 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260828.71a6399 latest | 2026-08-28 | 71a6399 | 6,568 B | A | view · diff |
| git:20260811.925e30f | 2026-08-11 | 925e30f | 6,629 B | A | view · diff |
| git:20260725.074b496 | 2026-07-25 | 074b496 | 6,615 B | A | view · diff |
| git:20260508.bb9bd6f | 2026-05-08 | bb9bd6f | 6,560 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6568 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
lugassawan/swe-workbench · 3 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_wlbvp573dqvzl2me GET https://markdownregistry.com/api/v1/resolve?ref=lugassawan/swe-workbench/principle-testing GET https://markdownregistry.com/api/v1/blob/6d7215f8e5144f426905827a745441704c1fef6c805ea137939f694ddcdf44ac
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.