Add Tugboat anxiety-aware problem-solving skill 🤖🤖🤖

[grgy078033]

What this adds

Tugboat is an Agent Skill for stalled or high-stakes work when unresolved uncertainty is causing significant anxiety. It directs Copilot to preserve the user's stated goal, choose high-information actions, validate results, and report confidence with its evidence.

The skill treats empathy as an operational change in effort and decision-making. It does not diagnose, provide therapy, manufacture certainty, or treat anxiety as permission to bypass safety and permission boundaries.

Why it is distinct

A repository-wide search found no existing Awesome Copilot skill for anxiety-aware, evidence-driven work on persistent blockers. The closest keyword match is an unrelated wording rule in an Azure skill.

Validation

• npm run skill:validate: all 411 skills passed
• npm run build: generated the Tugboat entry in docs/README.skills.md
• bash eng/fix-line-endings.sh: run with the repository Git toolchain
• git diff --check: passed

Upstream standalone project: https://github.com/grgy078033/tugboat
Initial release: https://github.com/grgy078033/tugboat/releases/tag/v0.1.0

[github-actions]

🔒 PR Risk Scan Results

Scanned 1 changed file(s).

Severity	Count
🔴 High	0
🟠 Medium	0
ℹ️ Info	0

✅ No matching risk patterns were detected in changed files.

This is an automated soft-gate report. Findings indicate review targets and do not block merge by themselves.

[github-actions]

🔍 Vally Lint Results

✅ All checks passed

Scope	Checked
Skills	1
Agents	0
Total	1

Severity	Count
❌ Errors	0
⚠️ Warnings	0
ℹ️ Advisories	0

Summary

Level	Finding
ℹ️	✅ tugboat (2/2 checks passed)
ℹ️	✓ [spec-compliance] All 1 skill(s) are spec-compliant.
ℹ️	✓ spec-compliance: All spec checks passed.
ℹ️	✓ [valid-refs] All file references across 1 skill(s) are valid.
ℹ️	✓ valid-refs: All file references resolve to existing files within the skill directory.
ℹ️	1 skill(s) linted, 1 passed

Full linter output

### Linting skills/tugboat
✅ tugboat (2/2 checks passed)
    ✓ [spec-compliance] All 1 skill(s) are spec-compliant.
        ✓ spec-compliance: All spec checks passed.
    ✓ [valid-refs] All file references across 1 skill(s) are valid.
        ✓ valid-refs: All file references resolve to existing files within the skill directory.

1 skill(s) linted, 1 passed