Fix checklist format and active voice in markdown files

Co-authored-by: afranken <763000+afranken@users.noreply.github.com>

Author: Copilot

.claude/skills/document/SKILL.md

@@ -36,6 +36,6 @@ Concise, active voice. Include runnable examples (Kotlin for API, shell for CLI)
 
 ## Checklist
 
-- Verify technical accuracy against source code
-- Ensure links and code examples are valid
-- Match surrounding style and formatting
+- [ ] Verify technical accuracy against source code
+- [ ] Ensure links and code examples are valid
+- [ ] Match surrounding style and formatting

.claude/skills/refactor/SKILL.md

@@ -33,8 +33,8 @@ Document what, why, and gotchas. Link to AWS API docs where relevant. See **[doc
 
 ## Checklist
 
-- [ ] No behavior changes — tests still pass
+- [ ] Verify no behavior changes — run tests
 - [ ] Run `make format`
-- [ ] Comments explain *why*, not *what*
-- [ ] Public APIs have KDoc
-- [ ] Names are self-documenting
+- [ ] Ensure comments explain *why*, not *what*
+- [ ] Add KDoc for all public APIs
+- [ ] Use self-documenting names

.claude/skills/test/SKILL.md

@@ -20,8 +20,8 @@ Read **[docs/TESTING.md](../../../docs/TESTING.md)**, **[docs/KOTLIN.md](../../.
 
 - [ ] Read `docs/TESTING.md` and root + module `AGENTS.md`
 - [ ] If existing tests have structural problems (poor naming, shared state, weak assertions), invoke the **`refactor` skill** to fix them rather than working around them
-- [ ] Tests pass locally
-- [ ] Both success and failure cases covered
-- [ ] Tests are independent (no shared state, UUID bucket names)
-- [ ] Assertions are specific
+- [ ] Verify tests pass locally
+- [ ] Cover both success and failure cases
+- [ ] Keep tests independent (no shared state, UUID bucket names)
+- [ ] Use specific assertions
 - [ ] Run `make format`

docs/TESTING.md

@@ -98,8 +98,8 @@ make integration-tests                                                       # A
 
 ## Checklist
 
-- [ ] Tests pass locally
-- [ ] Both success and failure cases covered
-- [ ] Tests are independent (no shared state, UUID bucket names)
-- [ ] Assertions are specific
+- [ ] Verify tests pass locally
+- [ ] Cover both success and failure cases
+- [ ] Keep tests independent (no shared state, UUID bucket names)
+- [ ] Use specific assertions
 - [ ] Run `make format`