feat: implement agent-os standards system and feature planning tools
- Split CODING_GUIDELINES.md into 19 indexed standards files under .claude/standards/
- 9 from CODING_GUIDELINES (conventions, powershell, security, api, git, gururmm)
- 10 from session log tribal knowledge (syncro, ssh, gitea, python, client, gururmm)
- Add .claude/standards/index.yml for cheap relevance-based lookup
- Add /inject-standards command: load targeted standards per task instead of full guidelines
- Add /shape-spec command: pre-implementation spec for GuruRMM features (plan.md,
shape.md, references.md, standards.md) with mandatory out-of-scope gate
- Add docs/tech-stack.md and docs/mission.md for ClaudeTools API
- Add projects/msp-tools/guru-rmm/docs/tech-stack.md and mission.md for GuruRMM
- Update CLAUDE.md commands table with /inject-standards and /shape-spec
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Mike Swanson
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