feat(roles): add claude_cli provider — run kernel via Claude Code CLI - #38
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Adds a third LLM provider alongside anthropic and openai. Set `llm.provider: claude_cli` in evolution.yml to drive planner / evaluator / goal_evaluator / strategist through the local `claude` binary instead of an API key. Why: the bundled examples (oss_fix_demo) already use claude CLI for the executor, but the planning roles still required an Anthropic API key. With this, a Claude Pro subscription is enough to run the full kernel — lowers the bar for evaluators / readers who try the README quickstart. Implementation: - Each role gets a `_call_claude_cli(prompt, model)` that shells out to `claude -p --model <model> --output-format json`, reads `result` from the JSON envelope. Planner / evaluator also read `total_cost_usd` and total tokens so the kernel-level cost guards keep working. - All four roles route through the existing `provider` switch; default behavior unchanged (provider defaults stay anthropic / openai). - No new dependency — uses stdlib subprocess + json. Defaults: opt-in only. Existing configs continue to work bit-for-bit. Targets a v1.2.0 minor release.
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Pull request overview
Adds a new opt-in LLM provider (claude_cli) so the kernel’s planning/evaluation roles can run via the local claude CLI (instead of requiring API keys), while still attempting to propagate token/cost accounting where available.
Changes:
- Added
claude_cliprovider branches to planner, evaluator, goal_evaluator, and strategist roles. - Implemented Claude CLI subprocess calls using
--output-format json, parsingresult(and in planner/evaluator, token usage +total_cost_usd). - Routed the new provider through the existing
llm.providerswitch in each role.
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.
| File | Description |
|---|---|
| roles/strategist.py | Adds claude_cli CLI invocation path for strategy generation. |
| roles/planner.py | Adds claude_cli path returning text + tokens + cost for cost guards. |
| roles/goal_evaluator.py | Adds claude_cli path for goal completion evaluation. |
| roles/evaluator.py | Adds claude_cli handling in _call_llm, including usage/cost parsing. |
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| proc = subprocess.run( | ||
| ["claude", "-p", "--model", model, "--output-format", "json"], | ||
| input=prompt, | ||
| capture_output=True, | ||
| text=True, | ||
| ) |
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| proc = subprocess.run( | ||
| ["claude", "-p", "--model", model, "--output-format", "json"], | ||
| input=prompt, | ||
| capture_output=True, | ||
| text=True, | ||
| ) |
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| proc = subprocess.run( | ||
| ["claude", "-p", "--model", model, "--output-format", "json"], | ||
| input=prompt, | ||
| capture_output=True, | ||
| text=True, | ||
| ) |
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| proc = subprocess.run( | ||
| ["claude", "-p", "--model", model, "--output-format", "json"], | ||
| input=prompt, | ||
| capture_output=True, | ||
| text=True, | ||
| ) |
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Summary
Adds a third LLM provider alongside
anthropicandopenai. Setllm.provider: claude_cliinevolution.ymlto drive planner / evaluator / goal_evaluator / strategist through the localclaudebinary instead of an API key.Why: the bundled examples (
oss_fix_demo) already use claude CLI for the executor, but the planning roles still required an Anthropic API key. With this, a Claude Pro subscription is enough to run the full kernel — drops the bar for evaluators / readers who try the README quickstart.Implementation
_call_claude_cli(prompt, model)that shells out toclaude -p --model <model> --output-format jsonand readsresultfrom the JSON envelope.planner.pyandevaluator.pyadditionally readtotal_cost_usdandusage.{input,output}_tokensfrom the JSON so the kernel-level cost guards keep working (no free pass through cost accounting just because there's no API bill).providerswitch; default behavior unchanged.subprocess+json.Compatibility
Opt-in only. Existing configs continue to work bit-for-bit. Targets a v1.2.0 minor release.
Test plan
llm.provider: claude_cliruns end-to-end against a target repo using only Claude Pro (noANTHROPIC_API_KEY)total_cost_usdnumbers fromclaude -pflow intoruns/NNNN/decision.jsoncost fieldtwine upload