[instructions] Sync instruction files with release v0.84.3

[github-actions]

Summary

• Ran the instructions-janitor Size and Duplication audits against the latest release (v0.84.3, 2026-08-03).
• designer.md had grown to 439 lines (over the 400-line target) after PR Sync designer.md with network shorthand corrections and skills/lsp/evals fields #50175 ("Sync designer.md with network shorthand corrections and skills/lsp/evals fields") added a new Invalid Network Shorthands table that exactly duplicated the canonical Invalid Shorthands section already in network.md, plus ~24 long-tail ecosystem rows in the Network Mapping table.
• Trimmed the Network Mapping table to the common ecosystems and removed the duplicate Invalid Network Shorthands table, replacing both with a pointer to .github/aw/network.md (which already lists the full ecosystem set and invalid-shorthand corrections).

Files changed

• .github/aw/designer.md -- 439 -> 399 lines

Audits performed

• Release/change audit: compared v0.84.3...HEAD via the GitHub compare API. Docs/.github/aw/ commits reviewed: b309463 (prior instructions sync), ca47f6b, a0dd503, cd85bff (Sync designer.md with network shorthand corrections and skills/lsp/evals fields #50175, designer.md network/skills/lsp/evals update), plus small accuracy commits touching pr-reviewer.md, instructions.md, syntax-agentic.md, syntax-engine.md, syntax-tools-imports.md, token-optimization.md/token-optimization-observability.md.
• Size audit: measured line counts of all .github/aw/*.md files. Only designer.md exceeded 400 lines (439). All other files, including the already-split token-optimization.md (384) and token-optimization-observability.md (50), are within target. After this change, the largest file is designer.md at 399 lines.
• Duplication audit: found and removed the exact-duplicate Invalid Network Shorthands table in designer.md (network.md already owns this content). No other new duplication found in the reviewed commits.
• Accuracy audit: spot-checked the token-steering engine flag (present in pkg/workflow/frontmatter_extraction_security.go) and the opencode engine's move to imports: [shared/opencode.md] (confirmed via .github/workflows/shared/opencode.md, smoke-opencode.md, and docs/adr/50145-remove-opencode-engine-from-workflows.md) -- both already accurately reflected in syntax-engine.md/syntax-tools-imports.md, no changes needed there.

Confirmation

• Duplicated content identified and removed (Invalid Network Shorthands table in designer.md)
• Every edited .github/aw/*.md file is under its target limit (designer.md: 399 / 400 lines)

Generated by 🧹 Instructions Janitor · sonnet50 · 101.2 AIC · ⌖ 6.85 AIC · ⊞ 5.6K · ◷

• expires on Aug 6, 2026, 1:31 AM UTC-08:00

[github-actions]

🚫 This PR violates the core contribution policy for this project.

According to the CONTRIBUTING.md, traditional pull requests are not enabled for non-core team members:

🚫 Traditional Pull Requests Are Not Enabled for non-Core team members: If you are not part of the core team, please do not create pull requests directly. Instead, you create detailed agentic plans in issues, discuss with the team, and a core team member will create and implement the PR for you using agents.

This project uses agentic development by a core team (inner-circle) primarily using Copilot coding agent or local coding agents. The contribution model requires:

1. ✅ Create a detailed agentic plan in an issue
2. ✅ Discuss with the team
3. ✅ A core team member creates and implements the PR using agents

What needs to happen:

If you are not a core team member, please close this PR and open a GitHub issue instead with:

• A detailed description of the changes needed
• The reasoning behind the changes
• Any audits or analysis performed

A core team member will review your proposal and create the PR through the agentic workflow.

If you are a core team member, please disregard this check — the policy applies to community contributors.

Generated by ✅ Contribution Check · auto · 58.7 AIC · ⌖ 3.75 AIC · ⊞ 8.8K · ◷

[gh-aw-bot]

@copilot This PR needs a quick maintainer-ready refresh.

• Please update the branch with the latest base changes.
• Then run the pr-finisher skill and address any remaining feedback before handing back.

Run: https://github.com/github/gh-aw/actions/runs/30899185417

Generated by 👨‍🍳 PR Sous Chef · gpt54 · 3.06 AIC · ⌖ 5.71 AIC · ⊞ 8.3K · ◷
_{Comment /souschef to run again}

[github-actions]

🎉 This pull request is included in a new release.

Release: v0.84.4