# Orchestration Log — Kelso Refinement Turn

### 20260423T154955Z — Plugin plan refinement and decision finalization

| Field | Value |
|-------|-------|
| **Agent routed** | Kelso (Copilot CLI Plugin Engineer) |
| **Why chosen** | Kelso owns plugin scope; refined initial plan with pushback on decision #5 (binary distribution strategy) |
| **Mode** | `background` (continuation turn) |
| **Why this mode** | Complex architectural decisions; multi-hour refinement cycle; allows parallel rubber-duck review |
| **Files read** | `.squad/decisions/inbox/copilot-directive-20260423T164049Z.md`, `.squad/decisions/inbox/copilot-directive-20260423T172300Z.md`, initial-plugin-plan.md |
| **File(s) produced** | `.squad/decisions/inbox/kelso-plugin-shape-final.md` (finalized architecture), inline acceptance by Stefan |
| **Outcome** | All 6 decisions locked; Kelso's MCP binary distribution override accepted (GitHub Release download vs. Git-committed binaries); ready for Phase 0 |

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## Summary

Kelso refined the initial plugin plan by re-evaluating decision #5 (MCP binary distribution). Key override: **GitHub Release download script** (via `bin/download.ps1`) instead of bundling 50–80MB binary in Git history per release. Rationale: avoids repo bloat, faster clones, long-term maintainability. Stefan accepted the tradeoff (2-step install > chronic Git bloat). All 6 decisions finalized and locked:

1. ✅ Custom Excel agent for MCP plugin only
2. ✅ MCP binary bundled with plugin (via Release download, not Git commit)
3. ✅ Windows-only gating (multi-layered: plugin.json + SKILL.md + README + runtime)
4. ✅ Lockstep versioning (plugin version = MCP server release tag)
5. ✅ Automated publication via GitHub Action (deviates from office-coding-agent manual precedent)
6. ✅ Marketplace submission deferred to v2

Deliverable: `kelso-plugin-shape-final.md` contains complete architecture, two-plugin layout (excel-mcp + excel-cli), published repo structure, and phased 9-hour execution plan (Phase 0–4).

**Status:** FINALIZED — Ready for execution.
