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| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
| 3fec43ea7e |
feat(orchestrator): kei pick + spawn_agent MCP tool — true multi-LLM shell
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Closes the "Claude Code as single primary" gap. Now `kei` (no args) execs
whichever CLI is configured as primary, and ANY MCP-capable orchestrator
can spawn KeiSeiKit agents on any backend via the built-in spawn_agent tool.
## A — orchestrator picker
bin/kei now reads ~/.claude/config/primary.toml and execs that CLI instead
of hardcoding claude. New arms:
kei pick interactive menu → set primary → launch it
kei --on=<backend> one-shot launch of <backend> (no primary write)
kei primary [<b>] get/set primary
Splash shows `primary CLI: <backend>` so the orchestrator is visible.
Failure mode: if primary's CLI isn't on PATH, prints install hint + offers
`kei pick` recovery.
scripts/kei-pick.sh — Constructor Pattern picker (<140 LOC). Lists all 6
backends with install status (✓/✗), highlights current primary, writes
choice to primary.toml, execs the picked CLI. Honors stdin TTY gate
(RULE TTY-INTERACTIVITY-GATE — -t 0, not -t 1) for non-interactive safety.
## B — spawn_agent MCP tool
_primitives/_rust/kei-mcp/src/handlers/tools.rs gains a built-in
`spawn_agent` tool, exposed alongside discovered atoms:
- inputSchema: { name: str, task: str, on?: backend-enum }
- Calls kei-agent-cli.sh internally with same DNA resolution
- 60s timeout, kill-on-drop
- Honors KEI_AGENT_CLI env for testing
Smoke 2026-05-26 (MCP stdio JSON-RPC round-trip):
spawn_agent(name=smoke-test, on=claude) → "SMOKE-OK" ✅
spawn_agent(name=smoke-test, on=grok) → "SMOKE-OK" ✅
Why it matters: Claude Code has a native Agent tool. Grok / Agy / Copilot /
Kimi don't have an equivalent native sub-agent surface — but they all speak
MCP. spawn_agent gives them KeiSeiKit's sub-agent capability when they're
the orchestrator. The chosen orchestrator no longer caps the sub-agent fleet.
## Other
_primitives/_rust/kei-mcp/Cargo.toml: tokio gains "io-std" feature (was
missing — main.rs uses tokio::io::stdin/stdout). This fixes a latent build
error unrelated to this PR (kei-mcp wasn't building cleanly before).
Tests: tools_list assertions updated for the +1 built-in tool (3 total
instead of 2 with atoms; 1 instead of 0 on empty root). All MCP tests pass.
Assembler 3/3 golden tests still pass (provider field is optional).
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