acp-bridge-caller

分类: 开发与编程 | 上传者: aws-samples | 下载: 0 | 版本: v1.0（最新）
v0.6.0 — 通过 ACP Bridge HTTP API 调用远程 CLI agent。Usage: /cli <prompt> | /cli ko <prompt> (kiro) | /cli cc <prompt> (claude) | /cli cx <prompt> (codex)
更新日志: Source: GitHub https://github.com/aws-samples/sample-acp-bridge
目录结构

当前层级: skill/
📄 acp-client.sh 9.2 KB
📄 SKILL.md 8.5 KB
SKILL.md

---
name: acp-bridge-caller
description: "v0.6.0 — 通过 ACP Bridge HTTP API 调用远程 CLI agent。Usage: /cli <prompt> | /cli ko <prompt> (kiro) | /cli cc <prompt> (claude) | /cli cx <prompt> (codex)"
---

# ACP Bridge Caller — Invoke Remote CLI Agents

Call remote CLI agents (Kiro CLI, Claude Code, OpenAI Codex, etc.) via the [ACP Bridge](https://github.com/xiwan/acp-bridge/) HTTP API and retrieve results.

## Trigger Commands

| Command | Description |
|---------|-------------|
| `/cli <prompt>` | Call default agent (kiro) |
| `/cli ko <prompt>` | Call kiro agent |
| `/cli cc <prompt>` | Call claude agent |
| `/cli cx <prompt>` | Call codex agent |

Command mapping:
- `/cli ko ...` → `$ACP_CLIENT -a kiro "..."`
- `/cli cc ...` → `$ACP_CLIENT -a claude "..."`
- `/cli cx ...` → `$ACP_CLIENT -a codex "..."`
- `/cli ...` → `$ACP_CLIENT "..."` (uses default agent)

## Prerequisites

This skill directory includes the `acp-client.sh` client script. **All calls and response parsing must go through this script.**

Script location: `acp-client.sh` in the same directory as this SKILL.md.

## Parameters

| Parameter | Default | Required | Description |
|-----------|---------|----------|-------------|
| bridge_url | — | Yes (first call) | ACP Bridge address, e.g. `http://172.31.15.10:8001`. Reused for the entire session once set |
| token | — | Yes (first call) | Auth token for Bearer authentication. Reused for the entire session once set |
| agent | — | No | Agent name to call. Use `-l` to list available agents |
| session_id | Auto-generated | No | UUID-format session ID for isolating agent sessions and multi-turn conversations |
| prompt | — | Yes | Prompt to send to the agent |

## Session State

- `bridge_url`: Provided by user or inferred from context on first call, then remembered and reused for the entire session
- `token`: Provided by user on first call, then remembered and reused. **Never display the token in plaintext output**
- `session_id`: Each agent is automatically assigned a fixed UUID, reused throughout the session. Different agents use different session_ids to avoid conflicts
- **The client must persist `session_id`**: After the first call, capture the session_id from stderr and reuse it in all subsequent calls. If the session_id changes, the server treats it as a brand new conversation and previous context is lost
- If the user has not provided `bridge_url` or `token`, ask for them before making any calls

## Session ID Rules

- **Must be UUID format** (e.g. `00000000-0000-0000-0000-000000000001`). Non-UUID values return a 422 error
- When `-s` is not specified, the script auto-generates a deterministic UUID based on the agent name, ensuring the same agent always reuses the same session
- **Client responsibility**: After generating a session_id on the first call, the client must persist it and include it in every subsequent call. If the session_id changes, the server treats it as a new conversation with no prior context
- Different agents use different session_ids to avoid hanging or unresponsive behavior when switching agents
- Same agent multi-turn conversations keep the same session_id to maintain context

## Execution Flow

### Step 1 — Verify Auth Info

**Before the first call, confirm both of the following — both are required:**

1. `bridge_url` — Bridge address
2. `token` — Auth token

If the user hasn't provided them, **stop and ask**. Do not attempt a call without a token. Example prompt:

> Please provide the ACP Bridge address and auth token:
> - Bridge URL (e.g. `http://<ip>:8001`)
> - Token (for Bearer authentication)

Once obtained, set environment variables:

```bash
export ACP_BRIDGE_URL=<bridge_url>
export ACP_TOKEN=<token>
```

### Step 2 — Confirm Script Availability

Locate `acp-client.sh` in this skill directory and ensure it's executable:

```bash
ACP_CLIENT="<skill_dir>/acp-client.sh"
chmod +x "$ACP_CLIENT"
```

### Step 3 — Verify Service Availability

```bash
$ACP_CLIENT -l
```

Outputs the list of available agents. Common errors:
- Connection failed → Wrong Bridge address or port
- `unauthorized` → Incorrect token
- `forbidden` → IP not in allowlist

### Step 4 — Call an Agent

```bash
# Single call (auto-generated session_id)
$ACP_CLIENT "<prompt>"

# Specify agent
$ACP_CLIENT -a <agent> "<prompt>"

# Specify session_id (must be UUID format)
$ACP_CLIENT -s 00000000-0000-0000-0000-000000000001 "<prompt>"
```

- stdout: Agent's reply (plain text)
- stderr: `session_id` (for multi-turn conversations) and error messages

### Step 5 — Multi-turn Conversations

Subsequent calls to the same agent automatically reuse the session_id:

```bash
# First call to default agent
$ACP_CLIENT "Show me the project structure"

# Follow-up call automatically reuses the same session
$ACP_CLIENT "Now write a README"

# Switch to another agent (automatically uses a different session)
$ACP_CLIENT -a claude "Analyze this code"
```

You can also manually specify a session_id to continue a conversation:

```bash
$ACP_CLIENT -s <uuid> "Follow-up question"
```

## Security Requirements

- **Never display the token in plaintext in output, logs, or replies**
- Pass the token only via the `ACP_TOKEN` environment variable; do not expose it in visible command-line output
- If a call fails with unauthorized, tell the user "the token may be incorrect" — do not echo the token value

## Troubleshooting

| Symptom | Cause | Fix |
|---------|-------|-----|
| `❌ Connection failed` | Service not running or wrong address | Verify Bridge address and port |
| `unauthorized` | Incorrect token | Ask user to confirm token |
| `forbidden` | IP not in allowlist | Contact Bridge admin to add IP |
| `422 Unprocessable` | session_id is not UUID format | Use a UUID-format session_id |
| `❌ server_error` | CLI execution error | Check error message for details |
| Long timeout | CLI processing or session conflict | Ensure different agents use different session_ids |

## Notes

- Response time depends on the remote CLI (typically 3–10s, longer for complex tasks)
- Special characters in prompts are automatically JSON-escaped by the script
- Multiple parts are concatenated into a single prompt sent to the CLI

## Async Job Mode

For long-running tasks, submit asynchronously and get results pushed to Discord on completion.

### Submit an Async Job

Async mode requires Discord callback info. **Call the `/jobs` endpoint directly** — do not use `acp-client.sh --async`.

When an OpenClaw agent receives a Discord message, it can obtain channel and account info from the current session's `deliveryContext`:

```bash
curl -X POST "$ACP_BRIDGE_URL/jobs" \
  -H "Authorization: Bearer $ACP_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "agent_name": "<agent>",
    "prompt": "<user prompt>",
    "discord_target": "<deliveryContext.to>",
    "callback_meta": {
      "account_id": "<deliveryContext.accountId>"
    }
  }'
```

Returns: `{"job_id": "xxx", "status": "pending"}`

The agent should immediately reply to the user: "✅ Submitted. Results will be pushed automatically when done."

### Query Job Status

```bash
curl -H "Authorization: Bearer $ACP_TOKEN" "$ACP_BRIDGE_URL/jobs/<job_id>"
```

### Auto-push to Discord on Completion

When an async job completes, Bridge automatically sends results to the specified Discord channel via OpenClaw Gateway.

**For push to work, the following must be included when submitting:**

| Field | Source | Description |
|-------|--------|-------------|
| `discord_target` | `deliveryContext.to` | Server channel: `channel:<id>`, DM: `user:<user_id>` |
| `callback_meta.account_id` | Discord bot account ID | Usually `default` (not the agent ID) |

**Important:**
- `account_id` is the OpenClaw-configured Discord bot account, usually `default` — not the agent name
- DM channels cannot use `channel:<dm_channel_id>` — must use `user:<user_id>` format
- Server channels use `channel:<channel_id>` or `#channel-name`

**Consequences of missing fields:**

| Missing | Result |
|---------|--------|
| `discord_target` | Job runs normally but results are not pushed to Discord (webhook payload falls back to raw JSON) |
| `account_id` | Webhook reaches OpenClaw but lacks bot identity; OpenClaw cannot route to Discord, returns 500 |
| Both | Job runs normally; results can only be retrieved via `GET /jobs/{id}` |

### Monitoring

```bash
# View all job statuses
curl -H "Authorization: Bearer $ACP_TOKEN" "$ACP_BRIDGE_URL/jobs"
```

Returns all jobs + status stats (pending/running/completed/failed). Jobs running longer than 10 minutes are auto-marked as failed and trigger a callback notification.
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acp-bridge-caller

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