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fix(claude-cli): pass system prompt via stdin instead of CLI argument#1812

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securityguy wants to merge 24 commits intosipeed:mainfrom
securityguy:fix/claude-cli-system-prompt-stdin
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fix(claude-cli): pass system prompt via stdin instead of CLI argument#1812
securityguy wants to merge 24 commits intosipeed:mainfrom
securityguy:fix/claude-cli-system-prompt-stdin

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Problem

ClaudeCliProvider.Chat passes the system prompt (agent instructions and all tool definitions) via the --system-prompt CLI flag:

claude -p --output-format json --dangerously-skip-permissions --no-chrome --system-prompt "<full agent instructions + tools>" -

This has two problems:

  1. Security exposure — the system prompt is visible to all users on the host via ps, exposing agent identity, instructions, and tool definitions.
  2. ARG_MAX risk — on Linux, the total size of command-line arguments is limited (~2 MB). With many tools registered, the system prompt can be large enough to cause silent truncation or an exec failure.

The gemini-cli and codex-cli providers already send all content through stdin; claude-cli was inconsistent.

Fix

The system prompt is now prepended to the stdin payload, separated from the user message by a --- delimiter. The --system-prompt flag is removed entirely.

When no system prompt is present, stdin is unchanged (bare user message, same as before). When a system prompt is present:

<system instructions and tool definitions>

---

<user message>

This is consistent with how the other CLI providers handle input, removes the security exposure, and eliminates the ARG_MAX risk.

securityguy and others added 24 commits March 15, 2026 20:53
Some providers (via OpenRouter) reject assistant messages with
"content": "" alongside tool_calls. The OpenAI spec permits content to
be absent when tool_calls is set. Switch openaiMessage.Content from
string to *string with omitempty and introduce msgContent() to return
nil when content is empty and tool calls are present.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…ields

Some OpenAI-compatible providers (e.g. OpenRouter routing to strict
backends) reject non-standard fields in the request body such as
reasoning_content in messages and extra_content / thought_signature
in tool calls. Add a per-model strict_compat: true config option that
strips these fields before serialization.

Implementation:
- Add StrictCompat bool to config.ModelConfig
- Add WithStrictCompat option to openai_compat.Provider
- Refactor HTTPProvider constructors into a single NewHTTPProviderWithOptions
  using variadic openai_compat.Option, eliminating the growing list of
  named constructors
- Thread StrictCompat through CreateProviderFromConfig via composed options

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
When the claude CLI exits with a non-zero status, the previous error
handler only checked stderr. However, the CLI writes its output
(including error details) to stdout, especially when invoked with
--output-format json. This left the caller with only "exit status 1"
and no actionable information.

Now includes both stderr and stdout in the error message so the actual
failure reason is visible in logs.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add claude-cli and codex-cli to the supported vendors table and
include vendor-specific configuration examples explaining:
- No API key is required (uses existing CLI subscription)
- The claude-code sentinel model ID skips --model flag so the CLI
  uses its own configured default model

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add channels.telegram_bots config allowing multiple Telegram bot tokens
to be configured, each mapped to a separate channel (e.g. telegram-amber,
telegram-karen). Each channel can be independently bound to an agent via
the bindings config, enabling distinct AI personas behind separate bots.

Backward compatibility is preserved: the existing channels.telegram
single-entry config continues to work unchanged. On load it is normalized
into telegram_bots as an entry with id "default", which produces the
channel name "telegram" so all existing bindings remain valid.

Key changes:
- config: add TelegramBotConfig struct with ChannelName/AsTelegramConfig
  helpers; add TelegramBots field to ChannelsConfig; normalize legacy
  single entry into list on load
- telegram: add NewTelegramChannelFromConfig constructor accepting
  TelegramConfig + explicit channel name (avoids import cycle)
- channels: add TelegramBotFactory registry; add injectChannelDependencies
  helper to eliminate injection code duplication; add duplicate channel
  name guard in initTelegramBot; update initChannels to iterate over
  TelegramBots; add prefix-based rate limit fallback for named bots

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…le.json

Add two disabled example bots (alice, bob) under channels.telegram_bots
and corresponding top-level bindings to illustrate how multiple Telegram
bots map to separate named channels and agents.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds GeminiCliProvider that wraps the Gemini CLI as a subprocess,
following the same pattern as the existing claude-cli and codex-cli
providers.

The provider invokes:
  gemini --yolo --output-format json --prompt ""

with the prompt sent via stdin. The --prompt "" flag enables
non-interactive (headless) mode, reading the full prompt from stdin.

Key details:
- Model sentinel: "gemini-cli" skips --model flag (uses CLI default)
- Explicit model: "gemini-cli/gemini-2.5-pro" passes --model gemini-2.5-pro
- System messages prepended to stdin (no --system-prompt flag in gemini)
- Parses JSON response format: {"response": "...", "stats": {"models": {...}}}
- Token usage summed across all models in stats.models (gemini uses
  multiple internal models per request)
- Tool calls extracted from response text using shared extractToolCallsFromText
- New protocol: "gemini-cli" / alias "geminicli"

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Add PR sipeed#1633 (gemini-cli provider) to contributions table
- Add configuration guide section covering:
  - claude-cli, codex-cli, and gemini-cli providers with model_list examples
  - Multiple Telegram bots with bindings and per-agent config
  - Agent workspace and personality file notes

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds GeminiCliProvider (PR sipeed#1633 against sipeed/picoclaw).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Replace Amber/Karen with Alice/Bob in all README examples for consistency.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Previously all agents shared a single LLMProvider instance created from
agents.defaults.model_name. Per-agent model config (agents.list[].model)
only changed the model string passed to Chat() — it never changed which
provider binary was invoked. This caused cross-provider fallback chains
(e.g. gemini-cli falling back to claude-cli) to fail, and made it
impossible to assign different CLI providers to different agents.

Introduces ProviderDispatcher which lazily creates and caches provider
instances keyed by "protocol/modelID". The fallback chain's run closure
now resolves the correct provider via the dispatcher before falling back
to agent.Provider for backward compatibility.

References sipeed#1634

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Brings in ProviderDispatcher fix (PR sipeed#1637 against sipeed/picoclaw).
References sipeed#1634.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
requiresRuntimeProbe and probeLocalModelAvailability handled claude-cli
and codex-cli but not gemini-cli, causing the launcher to report
"default model has no credentials configured" and skip auto-start when
gemini-cli was set as the default model.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
TryAutoStartGateway only checked gateway.cmd, which tracks processes the
launcher itself spawned. A gateway managed externally (e.g. via systemd)
was invisible to this check, causing two problems:
  1. The launcher started a duplicate gateway instance on every launch.
  2. The WebUI showed "Gateway Not Running" even when it was healthy.

Fix: probe the gateway health endpoint in two places:
  - TryAutoStartGateway: skip auto-start if the health endpoint responds.
  - gatewayStatusData: report "running" when the launcher has no owned
    process but the health endpoint is responding. Launcher-owned
    transition states (restarting/error) take precedence over the probe.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Brings in launcher external gateway detection fix (PR sipeed#1811 against sipeed/picoclaw).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The --system-prompt flag exposed agent instructions and tool definitions
in the process argument list (visible via ps to all users on the host)
and risked hitting OS ARG_MAX limits when many tools are registered.

System prompt content is now prepended to the stdin payload, separated
from the user message by a --- delimiter. This is consistent with how
the gemini-cli and codex-cli providers already handle all input.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
securityguy added a commit to securityguy/picoclaw that referenced this pull request Mar 19, 2026
@sipeed-bot sipeed-bot Bot added type: bug Something isn't working domain: provider go Pull requests that update go code labels Mar 19, 2026
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sipeed-bot Bot commented Apr 3, 2026

@securityguy Heads up! This stdin system prompt fix hasn't seen activity recently. Closing for regular cleanup. Feel free to reopen anytime!

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