feat: improved the Claude Kit as a plugin

skills/verification-before-completion/templates/verification-checklist.md

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+# Verification Checklist
+
+Use this checklist before claiming any work is complete. Copy it into your task, PR, or plan and fill in the specifics. Every box must be checked with evidence — not assumptions.
+
+---
+
+## Core Verification
+
+### Tests
+
+- [ ] **All existing tests pass**
+  - Command: `___`
+  - Output: [paste summary or confirm "all N tests passed"]
+
+- [ ] **New tests added for new behavior**
+  - Test files: `___`
+  - Coverage of changed code: `___`%
+
+- [ ] **Edge cases tested**
+  - [ ] Empty/null inputs
+  - [ ] Boundary values
+  - [ ] Error conditions
+  - [ ] Concurrent access (if applicable)
+
+### Build
+
+- [ ] **Build succeeds with no errors**
+  - Command: `___`
+  - Output: [confirm clean build]
+
+- [ ] **No new warnings introduced**
+  - Linter: `___`
+  - Type checker: `___`
+
+### Manual Verification
+
+- [ ] **The specific change works as intended**
+  - What I did: [exact steps taken]
+  - What I observed: [exact result]
+  - What was expected: [matches requirement]
+
+- [ ] **Related functionality still works**
+  - Checked: [list related features tested]
+
+---
+
+## Safety Checks
+
+### No Unintended Side Effects
+
+- [ ] **Reviewed the full diff** — No accidental changes to unrelated files
+  ```bash
+  git diff --stat
+  ```
+
+- [ ] **No debug code left in place** — No `console.log`, `print()`, `debugger`, `TODO: remove`
+
+- [ ] **No commented-out code** — Either the code is needed or it isn't
+
+### Error Handling
+
+- [ ] **Errors produce clear messages** — Not generic "something went wrong"
+- [ ] **Errors don't leak sensitive information** — No stack traces, internal paths, or credentials in user-facing errors
+- [ ] **Failure modes are graceful** — The system degrades rather than crashes
+
+### Security
+
+- [ ] **No hardcoded secrets** — API keys, passwords, tokens are in environment variables
+- [ ] **Input is validated** — User input is checked before processing
+- [ ] **Output is encoded** — Rendered content is escaped appropriately
+- [ ] **No new `eval()` or dynamic code execution**
+- [ ] **Dependencies are from trusted sources** — No typosquatting, pinned versions
+
+---
+
+## Documentation
+
+- [ ] **Code is self-documenting** — Clear names, obvious structure
+- [ ] **Complex logic has comments** — Explaining WHY, not WHAT
+- [ ] **Public API changes are documented** — Updated docstrings, OpenAPI specs, README
+- [ ] **Breaking changes are called out** — In commit message, PR description, or changelog
+
+---
+
+## Completion Criteria
+
+- [ ] **All acceptance criteria from the plan/ticket are met**
+  - [ ] Criterion 1: ___
+  - [ ] Criterion 2: ___
+
+- [ ] **The change has been verified with actual commands, not just code reading**
+
+- [ ] **Confidence level:** High / Medium / Low
+  - If Medium or Low, explain what additional verification would increase confidence: ___
+
+---
+
+## Evidence Summary
+
+Record the key evidence here for reviewers:
+
+| Check | Evidence |
+|-------|---------|
+| Tests pass | [command + result] |
+| Build clean | [command + result] |
+| Manual test | [steps + result] |
+| No regressions | [how verified] |
+
+---
+
+## Usage Notes
+
+- **Do not check boxes without evidence.** "I think it works" is not verification.
+- **Run commands and observe output.** Paste or summarize actual results.
+- **N/A is acceptable** for items that genuinely don't apply, but add a note explaining why.
+- **If confidence is low**, list what would increase it and discuss with the team before marking complete.