hzhang dbe68a889c feat(gemini): SessionMutator stub + session-file resolver
Wires the host's mirror hook end-to-end: FindGeminiSessionFile resolves
~/.gemini/tmp/<workspace>/chats/session-<ISO>-<sid_prefix>.jsonl from
the session id captured into .plexum-gemini-session, picking the
most-recent match by mtime. Logs the no-op for telemetry.

Real rewrite is deferred to v2: gemini-cli's tool-call id namespace
doesn't match Plexum's canonical block format (and its on-disk shape
is `$set`-style mutation log rather than flat append-only). When
tool-call round-trip through gemini's native surface lands, the
rewriter plugs into this file's path resolver.
2026-06-01 14:01:33 +01:00

Plexum-gemini-provider

Plexum ProviderPlugin that wraps the local gemini CLI binary (Google Gemini CLI) — same CLI-driven pattern as Plexum-anthropic-provider's contractor mode. Each Plexum turn forks one gemini -p subprocess in the agent's workspace.

Reference: openclaw/extensions/google/cli-backend.ts.

Status

v0.1: subprocess-per-turn, JSON output parsing, per-workspace session continuity via --resume. Models: gemini (CLI default), gemini-pro, gemini-flash, gemini-flash-lite.

Install

cd ~/Plexum-gemini-provider
./scripts/install.sh

Then:

  1. Allow in ~/.plexum/plexum.json:

    {"plugins": {"allow": ["plexum-gemini-provider"]}}
    
  2. Bind an agent:

    plexum agent-add --model gemini-flash my-agent
    
  3. Restart + talk:

    systemctl --user restart plexum
    plexum say --agent-id my-agent --session-id $(plexum new-session --agent-id my-agent) "hello"
    

Auth

There is no API key in this plugin's config. The gemini CLI handles auth itself via ~/.gemini/ (OAuth or GEMINI_API_KEY). Run gemini auth login (or set env) once, then this plugin just shells out.

How it works

For each Plexum turn the plugin forks:

gemini --skip-trust --output-format json [--model <m>] [--resume <sid>] -p "<last user msg>"

with cwd = <agent workspace>. The CLI exits with a single JSON blob:

{
  "session_id": "uuid",
  "response": "...",
  "stats": {"models": {...}}
}

We capture session_id into <workspace>/.plexum-gemini-session so the next turn passes --resume and Gemini sees the full prior context. The response text is emitted as one text_delta followed by message_end.

Models

Plexum model id CLI invocation
gemini no --model flag (CLI default — currently gemini-3-flash-preview)
gemini-pro --model pro (CLI alias → gemini-3.1-pro-preview)
gemini-flash --model flash (CLI alias → gemini-3.1-flash-preview)
gemini-flash-lite --model flash-lite (CLI alias → gemini-3.1-flash-lite-preview)

Any other id is passed through as --model <id> verbatim so operators can pin a specific Gemini model the local CLI knows about.

Config options

Field Default Notes
binary gemini executable name or absolute path
extra_args [] appended after the standard flags, before -p

License

Same as Plexum.

Description
Plexum ProviderPlugin wrapping the gemini CLI binary (CLI backend, contractor-style)
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