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Adds a uniform launcher that lets any KeiSeiKit agent run on whichever
LLM CLI you have a subscription to. Pick by familiarity, pricing, or
to get a second opinion on the same prompt.
Backends (locally installed, by subscription):
claude Claude Code (claude -p)
grok xAI Grok (grok --print; native --agent supported)
agy Antigravity (agy --print) alias: antigravity
copilot GitHub Copilot (copilot --prompt)
kimi Moonshot Kimi (stdin, TUI primary)
codex OpenAI Codex (codex -p) register-only
Files:
_primitives/cli-backends.toml SSoT backend table
scripts/kei-agent-cli.sh launcher; loads ~/.claude/agents/<n>.md,
strips frontmatter, composes with task,
execs backend non-interactive
bin/kei new arm: run-via | via | run | agent-via
docs/encyclopedia/multi-cli-agents.md user-facing docs + usage
Auto-installed via lib-scaffold.sh:77 glob (no install code change needed).
Test plan:
kei run-via list # status + agents
kei run-via grok critic "review src/auth.rs" # via Grok
kei run-via agy critic "review src/auth.rs" # via Antigravity
kei run-via copilot critic "review src/auth.rs" # via Copilot
KEI_NATIVE_AGENT=1 kei run-via grok critic "..." # native --agent
3.6 KiB
3.6 KiB
Multi-CLI agent invocation
Cross-LLM agent execution. Same agent definition, different backend.
KeiSeiKit agents are markdown files. Any LLM CLI that takes a prompt can
host them — kei run-via is the launcher that bridges them.
Backends
Registered in _primitives/cli-backends.toml (SSoT). Installed locally
via your own subscription / package manager:
| Backend | CLI binary | Non-interactive flag | Native --agent |
Notes |
|---|---|---|---|---|
| claude | claude |
-p |
yes | Claude Code (Anthropic) |
| grok | grok |
--print |
yes | xAI Grok Build TUI |
| agy | agy |
--print |
no | Google Antigravity (alias: antigravity) |
| copilot | copilot |
--prompt |
no | GitHub Copilot CLI (@github/copilot) |
| kimi | kimi |
stdin | no | Moonshot Kimi (primarily TUI/ACP) |
| codex | codex |
-p |
no | OpenAI Codex (register-only) |
Run kei run-via list to see which are installed on the current machine
and to list available agent names.
Usage
# Invoke the 'critic' agent through Grok with a task:
kei run-via grok critic "review src/auth.rs for variant analysis"
# Same agent, different backend:
kei run-via agy critic "review src/auth.rs"
kei run-via copilot critic "review src/auth.rs"
kei run-via claude critic "review src/auth.rs"
# Point at an arbitrary agent .md (not in ~/.claude/agents/):
kei run-via grok --file=/tmp/my-agent.md "do the thing"
# Backend's native --agent flag (grok/claude only):
KEI_NATIVE_AGENT=1 kei run-via grok critic "review src/auth.rs"
How it works
- Reads
~/.claude/agents/<agent-name>.md(assembler-generated prompt). - Strips YAML frontmatter.
- Composes with task as:
<agent prompt>\n\n---\n\nTASK FOR THIS RUN:\n<task>. - Execs the backend's non-interactive CLI with the composed prompt.
No agent file is modified. No new tokens are issued. Subscription authentication is whatever each CLI uses (its own login / config dir).
When to use each
This is a tool, not a recommendation. Each backend has different strengths; the substrate is agnostic about which you pick. Pick by:
- Familiarity — the CLI you already use day-to-day.
- Subscription cost — burn the one with cheaper marginal cost first.
- Specific feature — e.g.
grok --agentfor native sub-agent switching mid-conversation;agy --sandboxfor terminal restriction. - Independent second opinion — same agent, different model, see if conclusions diverge.
Adding a new backend
- Add a
[backend.<name>]table to_primitives/cli-backends.toml. - Add a case arm in
scripts/kei-agent-cli.shbackend_bin()andbackend_invoke()for the new CLI's print-flag. - Add a row to the table above.
What it is NOT
- Not a router — picks no backend for you; you ask, it dispatches.
- Not a federation — each backend runs independently with its own context; there is no cross-backend state.
- Not a wrapper around the backend's tool surface — what the CLI can do (Bash, file edits, MCP, etc.) is determined by that CLI, not KeiSeiKit. The substrate only ships the prompt.
Related
_primitives/_rust/kei-llm-router/— Beta-posterior router for programmatic model selection inside Rust code (a different layer)._primitives/_rust/kei-mcp/— MCP server that exposes KeiSeiKit primitives to ANY MCP-compatible client (Cursor / Continue / Zed / Aider / Cline / Windsurf / OpenClaw).