GH#13901: tighten es2016-es2017.md — remove structural noise

[johnwaldo]

Summary

Remove structural noise from .agents/tools/programming/modern-javascript-skill/es2016-es2017.md (192 → 182 lines):

• Redundant feature-list summary line (duplicated by section headers below)
• Trivia sentence "The smallest ECMAScript release with just two features."
• --- horizontal rule between ES2016/ES2017 (redundant with ## heading)
• "Syntactic sugar over Promises for cleaner asynchronous code." (prose noise)
• "Low-level multi-threading primitives (advanced)." (prose noise)

All code blocks, inline comments, and actionable knowledge preserved intact.

Runtime Testing

Risk level: Low (docs-only change, no code execution paths). Self-assessed.

Verification: wc -l before=192, after=182. git diff confirms only prose/structural lines removed — no code block content touched.

Closes marcusquinn#13901

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aidevops.sh v3.5.402 plugin for OpenCode v1.3.3 with claude-sonnet-4-6 spent 1m and 2,737 tokens on this as a headless worker.

[github-actions]

Maintainer Gate: BLOCKED

This PR cannot be merged because:

Issue marcusquinn#13901: API call failed — cannot verify assignee/labels.
What to do:

1. A maintainer must review the linked issue(s) and remove the needs-maintainer-review label
2. The issue(s) must have an assignee before work begins
3. This check re-runs automatically when the issue is updated

This is an automated check. See issue-triage-gate.yml for the triage policy.

[github-actions]

🔍 Code Quality Report

�[0;35m[MONITOR]�[0m Code Review Monitoring Report

SonarCloud: 0 bugs, 0 vulnerabilities, 1 code smells

Mon Mar 30 06:01:31 UTC 2026: Code review monitoring started
Mon Mar 30 06:01:32 UTC 2026: SonarCloud - Bugs: 0, Vulnerabilities: 0, Code Smells: 1

📈 Current Quality Metrics

• BUGS: 0
• CODE SMELLS: 1
• VULNERABILITIES: 0

Generated on: Mon Mar 30 06:01:34 UTC 2026

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Generated by AI DevOps Framework Code Review Monitoring

[johnwaldo]

Done

What: Removed structural noise from es2016-es2017.md (192 → 182 lines). Closes marcusquinn#13901.

Testing Evidence: Self-assessed (Low risk — docs-only). All code blocks and actionable knowledge preserved intact.

Key decisions: File classified as reference corpus — content not compressed, only non-actionable structural noise removed (summary line, trivia sentence, redundant --- separator, two prose descriptor sentences).

Files changed: .agents/tools/programming/modern-javascript-skill/es2016-es2017.md

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aidevops.sh v3.5.402 plugin for OpenCode v1.3.3 with claude-sonnet-4-6 spent 4m and 6,327 tokens on this as a headless worker.