CtrlK
BlogDocsLog inGet started
Tessl Logo
SkillPublic

e2e-testing

Plans, generates, runs, and heals Playwright end-to-end tests through a spec-first loop with Playwright Test Agents and `@playwright/mcp`. Use when adding E2E coverage or hardening a flaky flow; triggers on "add e2e", "test this flow", "verify the user journey", "/e2e-testing".

Quality

86%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide
SecuritybySnyk

Low

Low-risk findings worth noting

SKILL.md
Quality
Evals
Security

Quality

Content

77%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The body is a well-sequenced, lean, highly actionable index with genuine validation gates and feedback loops. Its principal defect is bundle integrity: the skill's core operating model (rules and templates load on demand) cannot function because the rules/ and templates/ files referenced throughout are absent from the bundle.

Suggestions

Ship the referenced bundle files: add the five `rules/*.md` and four `templates/*` files the index links to, or inline their critical content — every "Full rules:" and template link currently resolves to nothing.

Define or link the `confidence(analysis)` invocation used as the Phase 3 escalation gate; it is called without syntax, argument shape, or a pointer to where it is defined.

Cut redundancy between the "Decision flow at a glance" table and the phase sections (heal-loop cap, locator strategy, and Phase 0 rules each appear twice) to tighten token efficiency.

DimensionReasoningScore

Conciseness

The body is rule-dense with no explanations of concepts Claude already knows — the locator ladder, decision tables, and phase gates are all novel constraints. Minor trimming is possible: the "Decision flow at a glance" table restates rules already given in Phases 1–2, and "Composes with" repeats deferrals made earlier. Efficient with minor over-explanation, matching anchor 4 rather than anchor 5's every-token-earns-its-place.

4 / 5

Actionability

Concrete executable material is present: the jq/grep preflight checks, `npx playwright init-agents --loop=claude`, `npx playwright test --last-failed`, code-level locator examples like `getByRole('button', { name: 'Save' })`, and `trace: 'on-first-retry'`. Minor gaps keep it at anchor 4: exact agent invocation syntax and the spec/config/boilerplate templates live in bundle files, and `confidence(analysis)` is invoked without any syntax or definition inline.

4 / 5

Workflow Clarity

Phases 0–3 are clearly sequenced with a mandatory gate (Phase 0 decision table with halt rules), explicit validation (first-run pass or Healer convergence in ≤3 attempts, `tdd` provenance check, trace config confirmation), a feedback loop for error recovery (heal → `confidence(analysis)` → escalate with trace and spec instead of healing blindly), and a Definition of Done checklist. This matches anchor 5's sequence + validation + feedback loops + checklist.

5 / 5

Progressive Disclosure

The design is exemplary on paper — a self-declared "thin index" with clearly signaled one-level-deep links and per-phase load instructions — but scored against the actual bundle, 9 of the 12 referenced paths dangle: `rules/layer-decision.md`, `rules/spec-first-flow.md`, `rules/locator-strategy.md`, `rules/token-budget.md`, `rules/anti-patterns.md`, `templates/spec.md`, `templates/seed.spec.ts`, `templates/playwright.config.ts`, and `templates/install-plan.md` do not exist; only the three `references/*.md` files are present. When the majority of promised on-demand files are missing, navigation fails in practice, which falls below anchor 4's "minor organization gaps" and lands at anchor 3's could-be-better-organized level.

3 / 5

Total

16

/

20

Passed

Description

92%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong description: third-person, concise, explicit what-and-when with concrete natural trigger phrases and a clearly staked-out niche. The only weakness is slight synonym coverage in the trigger terms.

DimensionReasoningScore

Specificity

"Plans, generates, runs, and heals Playwright end-to-end tests through a spec-first loop with Playwright Test Agents and `@playwright/mcp`" names four concrete actions plus the mechanism, giving comprehensive coverage of what the skill does. This matches the anchor-5 pattern of multiple specific concrete actions; not score 4 because there is no meaningful gap in the capability list.

5 / 5

Completeness

The what ("Plans, generates, runs, and heals Playwright end-to-end tests...") and the when ("Use when adding E2E coverage or hardening a flaky flow; triggers on...") are both explicit, with concrete trigger phrases. This mirrors the anchor-5 good example exactly; score 4 would require the when to be less explicit, which it is not.

5 / 5

Trigger Term Quality

"adding E2E coverage", "hardening a flaky flow", "add e2e", "test this flow", "verify the user journey", "/e2e-testing" are natural phrases a user would say, with good variety. It falls short of anchor 5's synonym/extension density: common variants like "write end-to-end tests" or "flaky test" are absent from the trigger clause.

4 / 5

Distinctiveness Conflict Risk

The niche is tightly scoped to Playwright E2E via "Playwright Test Agents and `@playwright/mcp`" with distinct triggers ("add e2e", "verify the user journey"), which a generic testing or TDD skill would not claim. Minimal conflict risk; anchor 5 fits better than anchor 4's "minor overlap risk with closely related skills".

5 / 5

Total

19

/

20

Passed

Validation

87%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_field

'metadata' should map string keys to string values

Warning

relative_links

Relative link issues: 13 missing, 7 suspicious

Warning

Total

14

/

16

Passed

Repository

mthines/agent-skills

Path

skills/testing/e2e-testing/SKILL.md

Reviewed

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.