Doppleganger OpenClaw Skill
Prevents duplicate subagent sessions running the same task. Saves tokens and reduces lag—no more "multiple Spidermen" doing the same work.
Installation
clawhub install doppleganger
Requires npm i -g clawhub
275
Downloads
0
Stars
0
current installs
0 all-time
1
Versions
EU-Hosted Inference API Power your OpenClaw skills with
the best open-source models.
Drop-in OpenAI-compatible API. No data leaves Europe.
Explore Inference APIGLM
GLM 5
$1.00 / $3.20
per M tokens
Kimi
Kimi K2.5
$0.60 / $2.80
per M tokens
MiniMax
MiniMax M2.5
$0.30 / $1.20
per M tokens
Qwen
Qwen3.5 122B
$0.40 / $3.00
per M tokens
Doppleganger
Description
Prevents duplicate subagent sessions running the same task. Saves tokens and reduces lag—no more "multiple Spidermen" doing the same work.
Doppleganger
One task, one agent. Doppleganger stops duplicate subagent sessions from running the same task. That prevents token overspend, UI lag, and the chaos of five identical "task completed" announcements.
Usage
- The orchestrator already runs a duplicate check before
sessions_spawn(see delegate rule); Doppleganger is the named skill for that behavior. - User says: "prevent duplicate agents", "stop dopplegangers", "why are so many agents doing the same thing?"
- You want a single entry point to check whether a task is already running before spawning.
python3 /Users/ghost/.openclaw/workspace/skills/doppleganger/scripts/doppleganger.py check "<task string>" [--json]
python3 /Users/ghost/.openclaw/workspace/skills/doppleganger/scripts/doppleganger.py guard --task "<task>" [--json]JSON output:
{"duplicate": false, "doppleganger_ok": true}→ safe to spawn.{"duplicate": true, "reason": "running", "sessionId": "...", "key": "...", "doppleganger_ok": true}→ do not spawn; reply that the task is already running.
Exit codes: 0 = no duplicate (or check ok). 1 = error. 2 = duplicate detected.
What it does
- check / guard — Given a task string (the same one you would pass to
sessions_spawn), returns whether that task is already running. If yes, the orchestrator must not spawn again. - Uses the subagent-tracker's
check-duplicateunder the hood (one source of truth for runs/sessions).
Orchestrator
The delegate rule runs a duplicate check before every sessions_spawn; that check can be implemented by calling Doppleganger (or subagent-tracker check-duplicate) with the router's task string. If duplicate: true, do not call sessions_spawn.
Name
"Doppleganger" = the duplicate agent doing the same thing. One Spiderman is enough.
Statistics
Latest Changes
v1.0.0 · Feb 27, 2026
Initial release of Doppleganger skill to prevent duplicate subagent sessions. - Ensures only one subagent runs each task at a time, avoiding redundant "doppleganger" sessions. - Provides command-line scripts to check or guard against duplicate tasks before spawning agents. - Returns JSON output and exit codes indicating if a duplicate is detected. - Integrates with orchestrator to enforce single-agent-per-task policy. - Helps save tokens and reduce UI lag by blocking duplicate runs.
Quick Install
clawhub install doppleganger Related Skills
Other popular skills you might find useful.
Made in Europe Chat with 100+ AI Models in one App.
Use Claude, ChatGPT, Gemini alongside with EU-Hosted Models like Deepseek, GLM-5, Kimi K2.5 and many more.
