quicker-rpc-knowledge

name	quicker-rpc-knowledge
description	Detailed QuickerRpc ecosystem knowledge: terminology (QuickerAgent Quicker action vs AI agent), architecture, named pipe, qkrpc serve, bootstrap, connectivity failure diagnosis. Use when qkrpc connection fails, PLUGIN_NOT_RUNNING, qkrpc_health/qkrpc_wait errors, serve 9477 unreachable, user asks how QuickerRpc or QuickerAgent works, or before telling the user to fix Quicker/plugin environment.

QuickerRpc knowledge

Domain reference for why qkrpc connects the way it does and what to do when it fails. For day-to-day tool usage see qkrpc; for writing actions see quicker-authoring.

Terminology (read first)

Name	What it is	Not
Quicker	Desktop automation app (Quicker.exe)	—
QuickerRpc plugin	net472 DLL loaded inside Quicker; hosts RPC server on a named pipe	The CLI
QuickerAgent	Quicker shared action + desktop app (quicker-agent.exe, from agent-gui/) for AI chat / action editing	Generic "AI agent" or Cursor
QuickerRpc_Run	Subprogram inside the QuickerAgent action package; calls Launcher.Start* → starts RPC (+ optionally QuickerAgent UI)	qkrpc.exe
qkrpc	CLI client (qkrpc.exe); connects to plugin pipe or exposes qkrpc serve HTTP	Runs inside Quicker
AI agent	Cursor, Claude, QuickerAgent chat agent, etc.	The Quicker action named QuickerAgent

QuickerAgent action chain (in Quicker):

QuickerAgent.Start  (shared action, id 7d6999ed-93a1-4db0-9763-5405066199ac)
  └─ QuickerRpc_Run subprogram → QuickerRpc.Plugin.Launcher
       ├─ starts named-pipe RPC server
       └─ may launch quicker-agent.exe (desktop UI)

Bootstrap action (qkrpc auto-start when pipe missing):

• Action id: aa5917ad-1256-4c73-7022-08debe3efcbe
• URI: quicker:runaction:aa5917ad-1256-4c73-7022-08debe3efcbe?plugin (silent RPC only)

Full glossary: references/terminology.md

Architecture (one screen)

AI agent (Cursor / QuickerAgent chat / script)
    │
    ├─ MCP qkrpc_*  ──stdio──► qkrpc mcp ──┐
    ├─ HTTP ─────────────────► qkrpc serve :9477 ──┤
    └─ shell qkrpc ping/wait ──────────────────────┤
                                                   ▼
                              qkrpc.exe (pipe client)
                                                   │
                         named pipe QuickerRpc_Server_QRPC2026
                                                   ▼
                              QuickerRpc.Plugin (inside Quicker.exe)
                                                   ▼
                              Quicker UI thread / action services

• Pipe name: QuickerRpc_Server_QRPC2026 (QuickerRpcPipeNames.ServerPipe)
• Serve default: http://127.0.0.1:9477/health (long-lived pipe; used by QuickerAgent)
• Plugin must run inside Quicker — qkrpc alone cannot serve Quicker APIs without the pipe

Details: references/architecture.md

Connectivity failure — agent playbook

Step 1: One check, one wait (no probe loops)

qkrpc_wait / QuickerAgent qkrpc_wait tool (agent-gui) auto-recovers:

1. Restart qkrpc serve if :9477 is down (dev + bundled)
2. HTTP wait op with quicker:runaction:aa5917ad-…?plugin bootstrap (default)
3. CLI qkrpc wait fallback if serve still unreachable

Host	Do	Do not
MCP configured	qkrpc_health → on fail qkrpc_wait (once)	Repeated ping, shell loops, build.ps1 -t
Shell only	qkrpc wait --json (or ping once)	Install/reinstall qkrpc as first fix
QuickerAgent chat	Rely on sidebar RPC status; qkrpc_wait if tool exists	shell_exec ping/probe/serve/build

QuickerAgent chat hard rule: on connectivity_failure, tell the user to check Quicker + plugin + serve — stop; no shell workaround unless user explicitly asks to fix the environment.

Step 2: Interpret error codes

Code / symptom	Meaning
PLUGIN_NOT_RUNNING	Pipe file \\.\pipe\QuickerRpc_Server_QRPC2026 absent — plugin not loaded
CONNECT_TIMEOUT	Pipe exists but connect hung (rare; retry once)
WAIT_TIMEOUT	Wait window exhausted; bootstrap may have been tried
HTTP 9477 connection refused	qkrpc serve not running (QuickerAgent dev: build.ps1 -t or start serve)
HTTP 9477 503 / unhealthy	serve up but plugin pipe down

Step 3: User checklist (plain language)

Tell the user to verify in order:

1. Quicker is running (Quicker.exe). If not, start Quicker first.
2. QuickerRpc plugin loaded — run QuickerAgent action once, or open shared action aa5917ad-…, or run quicker:runaction:aa5917ad-1256-4c73-7022-08debe3efcbe?plugin.
3. QuickerAgent / dev: if tools fail but Quicker is OK, ensure qkrpc serve on :9477 (sidebar "重新检测" or GET http://127.0.0.1:9477/health).
4. After repo plugin/CLI changes: maintainer runs pwsh ./build.ps1 -t (hot-reload DLL + restart serve) — not the chat agent's job unless user asks.

Step 4: Bootstrap behavior (why auto-start sometimes fails)

• qkrpc may launch quicker:runaction:…?plugin when pipe missing and Quicker is running.
• Skipped when Quicker process not found (avoids duplicate popups).
• Cooldown ~120s per process between bootstrap launches (QuickerRpcBootstrapPolicy).
• Bootstrap waits up to 12s for pipe; qkrpc wait default up to 120s.

Full decision tree: references/connectivity.md

QuickerRpc_Run start modes (quicker_in_param)

Input / trigger	RPC	QuickerAgent UI	Notes
?plugin / bootstrap	✓	✗	Silent; qkrpc auto-start
?agent / manual click	✓	✓	Opens/brings forward quicker-agent.exe
?agent-kill	✗	kill	Context menu only
ActionTrigger.Extern (qkrpc external)	✓	✗	Version toast
ActionTrigger.AutoRun	✓	✗	Silent

Key paths & IDs

Item	Location / value
qkrpc CLI	%LOCALAPPDATA%\Programs\qkrpc\qkrpc.exe
Plugin DLL (publish)	publish/plugin/QuickerRpc.Plugin.*.dll
Quicker test package	%USERPROFILE%\Documents\Quicker\_packages\quicker.rpc\{X.Y.Z}\
QuickerAgent workspace (installed)	Documents/QuickerAgent/workspace
QuickerAgent monitor action	7d6999ed-93a1-4db0-9763-5405066199ac
Plugin bootstrap action	aa5917ad-1256-4c73-7022-08debe3efcbe

Agent capability matrix

Capability	QuickerAgent (chat)	Third-party MCP agent
workspace_program file read/write	✓	✗ — host file tools + workspace_program patch
qkrpc serve HTTP	✓ default	optional
Visual step editor	✓	✗
Fix plugin / run build.ps1 -t	user / maintainer	user / maintainer

Related skills

Situation	Skill
Call qkrpc / MCP tools	qkrpc
Connection failed (this doc)	quicker-rpc-knowledge
Write/edit actions	quicker-authoring
.quicker/ disk edit	quicker-authoring → topic workspace-editing
Run/debug only	quicker-run
After C# changes, hot-reload	quicker-rpc-build-test

Human docs

• README.md — install, architecture
• docs/agent-mcp-integration.md — third-party MCP
• docs/cli-commands.md — CLI reference
• AGENTS.md — repo agent rules