chore(agents): add reusable review skills

[Benoît Cortier (CBenoit)]

Port reusable compression, documentation, prose, and attribution skills for Gateway agents.

Add a contract-aware review orchestrator that routes only applicable changes through authoritative contract checks.

Co-authored-by: Copilot App 223556219+Copilot@users.noreply.github.com

[Benoît Cortier (CBenoit)]

Implementation notes:

• Ported code-compressor, docs-compressor, docs-writer, markdown-writer, prose-verifier, and prose-writer without behavioral changes.
• Generalized skeptical-reviewer by removing repository-specific naming and accepting findings from any review pass instead of only protocol or contract analysis.
• Refined llm-comment-footer to say "content" instead of "reply" so the same attribution accurately covers issue bodies and comments; its attribution scope is unchanged.
• Replaced the RDP-specific protocol-reviewer with external-contract-reviewer so contract checks apply only to relevant HTTP/OpenAPI, WebSocket, relay/tunneling, configuration-schema, and agent/platform changes.
• Adapted code-review to route applicable diffs through the external-contract reviewer, always run code compression and skeptical review, and add documentation/prose passes when relevant.
• No sync manifest was added because this repository has no local skills-sync.yml; the skills use its auto-discovered .agents/skills and .github/skills locations.
• All ten skills pass the repository Tessl lint helper. The final diff also passes whitespace and IronRDP-specific reference checks.

Note

Human-tuned, LLM-assisted content.

[Copilot]

Pull request overview

Adds reusable agent-review skills and a contract-aware review orchestrator.

Changes:

• Adds focused code, documentation, prose, contract, and skeptical review passes.
• Adds writing guidance and LLM attribution rules.
• Coordinates parallel review passes with final evidence normalization.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
.github/skills/code-review/SKILL.md	Orchestrates specialized review passes.
.agents/skills/skeptical-reviewer/SKILL.md	Adds evidence-driven final review.
.agents/skills/prose-writer/SKILL.md	Defines concise prose guidance.
.agents/skills/prose-verifier/SKILL.md	Reviews edited prose.
.agents/skills/markdown-writer/SKILL.md	Defines Markdown-writing conventions.
.agents/skills/llm-comment-footer/SKILL.md	Defines LLM attribution footers.
.agents/skills/external-contract-reviewer/SKILL.md	Reviews external contract compliance.
.agents/skills/docs-writer/SKILL.md	Defines technical documentation guidance.
.agents/skills/docs-compressor/SKILL.md	Reviews documentation concision.
.agents/skills/code-compressor/SKILL.md	Reviews code simplification opportunities.

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