## Why
The existing kyberforge research covered skills vs agents (ADR-0010),
Copilot track selection, and agent scope hierarchy — but had no documented
basis for three practical decisions: when to use MCP servers vs skills vs
agents, when hooks are the right tool vs skills, and when bin/ is
appropriate vs scripts/ inside a skill directory. Without this, the
plugin-author and agent-author skills have no research backing for those
choices.
## Implementation Notes
Sourced from official Claude Code plugin docs (code.claude.com), official
GitHub Copilot CLI docs (docs.github.com), and the Copilot
customization-cheat-sheet and comparing-cli-features pages — the latter
containing the only official "putting it together" decision table across
components. Context7 MCP was the primary retrieval mechanism; web reads
deepened the hooks and bin/ content.
Three files produced:
- overview.md — mental model, component roles, cross-provider portability
- decision-guide.md — explicit decision tables for all three gaps,
including anti-patterns and Copilot surface support matrix
- hooks.md — full lifecycle event reference, stdin/stdout schema,
hookSpecificOutput per event, plugin scope restriction
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0147vXtL5sP6vorDdqXGJJU9
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