fix(writing-skills): replace @ reference with markdown link

[stablegenius49]

Summary

• replace @testing-skills-with-subagents.md with a standard markdown link in skills/writing-skills/SKILL.md
• keep the guidance consistent with earlier advice in the same skill to avoid force-loading via @ references

Fixes #280

Validation

• ran a local markdown link check for skills/writing-skills/SKILL.md to confirm the linked file resolves (links_checked=1 missing=0)

[coderabbitai]

📝 Walkthrough

Walkthrough

The change replaces an @ syntax file reference with a standard Markdown hyperlink in the Testing methodology section, aligning the file reference style with official Anthropic documentation conventions.

Changes

Cohort / File(s)	Summary
Documentation link formatting skills/writing-skills/SKILL.md	Updated file reference from @ syntax to Markdown link format in Testing methodology section for consistency and adherence to official documentation standards.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A link was dressed in fancy @ attire,
But Markdown brackets raised it higher,
Now testing skills shine bright,
Consistent style, perfectly right! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: replacing an @ reference with a markdown link in the writing-skills file.
Description check	✅ Passed	The description is directly related to the changeset, explaining the replacement of the @ reference with a markdown link and its purpose.
Linked Issues check	✅ Passed	The PR fully addresses issue #280 by replacing the @ reference with a standard markdown link as specified in the linked issue.
Out of Scope Changes check	✅ Passed	The changes are scoped to the specific requirement: only the @ reference syntax is replaced with markdown link syntax in the writing-skills file.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)

skills/writing-skills/SKILL.md (1)

316-316: ⚠️ Potential issue | 🟡 Minor

Missed @ reference: Apply the same fix here.

Line 316 still uses @graphviz-conventions.dot, which is the same @ syntax issue that was fixed at line 556. For consistency with the file's own guidance (lines 286-288) and the fix applied elsewhere, this should also be changed to a markdown link.

📝 Suggested fix

-See `@graphviz-conventions.dot` for graphviz style rules.
+See [graphviz-conventions.dot](graphviz-conventions.dot) for graphviz style rules.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@skills/writing-skills/SKILL.md` at line 316, Replace the literal @ reference
"@graphviz-conventions.dot" with a proper markdown link consistent with the
other fixes (e.g., [graphviz-conventions.dot](graphviz-conventions.dot)) so the
reference follows the file's guidance and matches the change already made
elsewhere; locate the occurrence of "@graphviz-conventions.dot" in SKILL.md and
update it to a markdown link.

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Outside diff comments:
In `@skills/writing-skills/SKILL.md`:
- Line 316: Replace the literal @ reference "@graphviz-conventions.dot" with a
proper markdown link consistent with the other fixes (e.g.,
[graphviz-conventions.dot](graphviz-conventions.dot)) so the reference follows
the file's guidance and matches the change already made elsewhere; locate the
occurrence of "@graphviz-conventions.dot" in SKILL.md and update it to a
markdown link.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: c8dff73b-7116-4f1b-a0c4-0b85dbf86879

📥 Commits

Reviewing files that changed from the base of the PR and between e4a2375 and 2611d44.

📒 Files selected for processing (1)

• skills/writing-skills/SKILL.md