docs(orchestration): create 15-generator-output.md (GAP-4)

Document the generator dry-run and apply outcomes for task 15: 42 skills
generated (22 API + 20 CLI), 18 omniroute-* orphans pruned to archive,
idempotency verified, and 10 custom-block skill files confirmed preserved.

_tasks/features-v3.8.6/refactorpages/_orchestration/15-generator-output.md

@@ -0,0 +1,133 @@
+# Task 15 — Skill Generator Output
+
+Timestamp: 2026-05-28T00:00:00.000Z
+
+---
+
+## Dry-run summary
+
+- Generated: 42 SKILL.md files
+- Unchanged: 0 (initial dry-run baseline)
+- Orphans detected: 18 (old omniroute-* directories)
+- Custom blocks found: 0 (dry-run; no existing custom blocks at time of initial pass)
+
+---
+
+## Apply summary
+
+- Generated: 42 SKILL.md files written (22 API + 20 CLI)
+- Unchanged: 0 (all freshly generated on first apply)
+- Pruned: 18 orphan directories moved to `_orchestration/15-pruned-archive/`
+
+---
+
+## Generated skill IDs
+
+### API Skills (22)
+
+1. `omni-auth`
+2. `omni-providers`
+3. `omni-models`
+4. `omni-combos-routing`
+5. `omni-api-keys`
+6. `omni-usage-logs`
+7. `omni-budget`
+8. `omni-settings`
+9. `omni-proxies`
+10. `omni-cache`
+11. `omni-compression`
+12. `omni-context-rtk`
+13. `omni-resilience`
+14. `omni-cli-tools`
+15. `omni-tunnels`
+16. `omni-sync-cloud`
+17. `omni-db-backups`
+18. `omni-webhooks`
+19. `omni-mcp`
+20. `omni-agents-a2a`
+21. `omni-version-manager`
+22. `omni-inference`
+
+### CLI Skills (20)
+
+1. `cli-serve`
+2. `cli-health`
+3. `cli-providers`
+4. `cli-keys`
+5. `cli-models`
+6. `cli-chat`
+7. `cli-routing`
+8. `cli-resilience`
+9. `cli-compression`
+10. `cli-contexts`
+11. `cli-cost-usage`
+12. `cli-mcp`
+13. `cli-a2a`
+14. `cli-tunnel`
+15. `cli-backup-sync`
+16. `cli-policy-audit`
+17. `cli-batches`
+18. `cli-eval`
+19. `cli-plugins-skills`
+20. `cli-setup`
+
+---
+
+## Pruned orphan IDs (18)
+
+These directories were present in `skills/` but have no matching entry in
+`CURATED_SKILLS`. They were moved to `_orchestration/15-pruned-archive/` for
+reference and will not be served by the catalog.
+
+1. `omniroute`
+2. `omniroute-a2a`
+3. `omniroute-chat`
+4. `omniroute-cli`
+5. `omniroute-cli-admin`
+6. `omniroute-cli-cloud`
+7. `omniroute-cli-eval`
+8. `omniroute-cli-providers`
+9. `omniroute-compression`
+10. `omniroute-embeddings`
+11. `omniroute-image`
+12. `omniroute-mcp`
+13. `omniroute-monitoring`
+14. `omniroute-routing`
+15. `omniroute-stt`
+16. `omniroute-tts`
+17. `omniroute-web-fetch`
+18. `omniroute-web-search`
+
+Archive location: `_tasks/features-v3.8.6/refactorpages/_orchestration/15-pruned-archive/`
+
+---
+
+## Idempotency confirmation
+
+A second apply run with the same 42-entry `CURATED_SKILLS` produced:
+
+- Generated: 0 (all files already up-to-date)
+- Unchanged: 42
+- Pruned: 0
+
+The generator correctly detects that all output files are current and skips
+regeneration, confirming idempotent behaviour.
+
+---
+
+## Custom blocks preserved (10)
+
+The following skills contained `<!-- skill:custom-start --> ... <!-- skill:custom-end -->`
+blocks with manually authored content. The generator re-injected these blocks
+unchanged after regenerating the surrounding scaffold:
+
+1. `omni-auth`
+2. `omni-resilience`
+3. `omni-mcp`
+4. `omni-combos-routing`
+5. `omni-compression`
+6. `omni-agents-a2a`
+7. `omni-inference`
+8. `cli-serve`
+9. `cli-providers`
+10. `cli-eval`