tinyhumansai/openhuman · error · anyhow::Error

claude-code semaphore closed: {e}

Error message

claude-code semaphore closed: {e}

What it means

Acquiring the concurrency permit that caps simultaneous Claude Code processes failed because the semaphore was closed. The permit is released per turn; a closed semaphore means the provider instance is being torn down while a chat request is still arriving — an invariant/lifecycle error, not load-related.

Source

Thrown at src/openhuman/inference/provider/claude_code/mod.rs:171

                "[claude-code] `claude` CLI at {} unusable: {}",
                path,
                reason
            ),
        }
    }

    async fn run_chat(
        &self,
        request: ChatRequest<'_>,
        model_override: Option<&str>,
    ) -> anyhow::Result<ChatResponse> {
        // Cap concurrent CC processes.
        let _permit = self
            .semaphore
            .clone()
            .acquire_owned()
            .await
            .map_err(|e| anyhow::anyhow!("claude-code semaphore closed: {e}"))?;

        // Extract system prompt + thread_id from the request.
        let append_system_prompt = request
            .messages
            .iter()
            .find(|m| m.role == "system")
            .map(|m| m.content.clone());

        // OpenHuman doesn't pass thread_id directly through ChatRequest yet
        // (Phase 4 will). For Phase 2 we key sessions on a stable hash of
        // the conversation so /resume kicks in across consecutive turns.
        let thread_id = thread_key_from_messages(request.messages);

        let model = model_override.unwrap_or(&self.model).to_string();

        let turn = driver::TurnContext {
            bin_path: self.bin_path.clone(),
            workspace_dir: self.workspace_dir.clone(),

View on GitHub (pinned to 7491200858)

Solutions

1. Ensure the provider is not used after shutdown
2. Check for requests racing provider teardown

When it happens

Trigger: Thrown at src/openhuman/inference/provider/claude_code/mod.rs:171 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of tinyhumansai/openhuman@7491200858 (2026-08-17). Data as JSON: /api/errors/8a0ca5f770d14405. Report an issue: GitHub.