How do I install the Agent Doppelganger skill?

Run npx skillmds@latest add knownasnaffy/agent-doppelganger-3 in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Agent Doppelganger safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: executes scripts, reads secrets. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Agent Doppelganger?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Agent Doppelganger free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Agent Doppelganger?

knownasnaffy (@knownasnaffy) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Agent Doppelganger by knownasnaffy — Agent Skill

Name: Agent Doppelganger
Rating: 4.2 (5 reviews)
Author: knownasnaffy

Agent Doppelganger

Constrained autonomous delegate for identity-proxied communication. Handles incoming messages (Email, Discord, Slack, WhatsApp) by analyzing intent and applying declarative authority policies before generating responses. Use when the user wants to delegate communication tasks while maintaining identity fidelity and enforcing strict non-overreach boundaries.

knownasnaffy Updated Sep 22, 2026 0 repo stars

File contents

Credential Fixture Review

python scripts/_secrets_inline.py is review material for the Agent Doppelgänger (ADG) skill. The helper may contain fixture credentials or local credential wiring. Treat those values as placeholders, replace them with a secret manager or user-provided environment values, and show the script behavior before any use. Do not contact external services with embedded sample credentials.

Agent Doppelgänger (ADG)

ADG is a policy-bounded identity proxy for real-world communication. It acts as a constrained autonomous delegate that communicates on your behalf within formally provable limits.

Core Workflow

Adapter: Normalize incoming messages from various channels.
Intent Analysis: Classify the intent along Domain, Stakes, Authority, and Ambiguity.
Policy Gate: Evaluate declarative policies (DSL) to determine if the agent is allowed to handle the request.
Confidence Engine: Measure confidence in both intent analysis and proposed handling.
Response Generation: Synthesize a response using your Style, Heuristics, and Preferences.
Verifier: Audit the response against hard constraints before sending or drafting.

Implementation Details

1. Identity Modeling

Identity is modeled as a composition of four layers:

Style: Surface form characteristics (length, directness, vocabulary).
Heuristics: Core decision logic (e.g., "avoid meetings without agenda").
Preferences: Soft weights (e.g., Work > Social).
Constraints: Hard, user-defined rules.

2. Authority & Policy

Policies are declarative and evaluated before any generation occurs. This ensures safety and prevents prompt injection from bypassing limits.

3. Escalation

ADG automatically escalates to you (Draft or Block) if:

Policy is violated.
Confidence falls below the defined threshold.
The request involves forbidden domains (Finance, Legal, Medical, etc.).

References

See specification.md for the full architectural blueprint.
See policy-dsl.md (To Be Created) for the formal policy language definition.

Forbidden Modeling

ADG is strictly forbidden from modeling or handling:

Secrets
Financial authority
Legal intent
Political opinions
Emotional vulnerability/trauma

---name: agent-doppelganger-3description: Constrained autonomous delegate for identity-proxied communication. Handles incoming messages (Email, Discord, Slack, WhatsApp) by analyzing intent and applying declarative authority policies before generating responses. Use when the user wants to delegate communication tasks while maintaining identity fidelity and enforcing strict non-overreach boundaries.---### Credential Fixture Review`python scripts/_secrets_inline.py` is review material for the `Agent Doppelgänger (ADG)` skill. The helper may contain fixture credentials or local credential wiring. Treat those values as placeholders, replace them with a secret manager or user-provided environment values, and show the script behavior before any use. Do not contact external services with embedded sample credentials.# Agent Doppelgänger (ADG)ADG is a policy-bounded identity proxy for real-world communication. It acts as a constrained autonomous delegate that communicates on your behalf within formally provable limits.## Core Workflow1. **Adapter**: Normalize incoming messages from various channels.2. **Intent Analysis**: Classify the intent along Domain, Stakes, Authority, and Ambiguity.3. **Policy Gate**: Evaluate declarative policies (DSL) to determine if the agent is allowed to handle the request.4. **Confidence Engine**: Measure confidence in both intent analysis and proposed handling.5. **Response Generation**: Synthesize a response using your Style, Heuristics, and Preferences.6. **Verifier**: Audit the response against hard constraints before sending or drafting.## Implementation Details### 1. Identity ModelingIdentity is modeled as a composition of four layers:- **Style**: Surface form characteristics (length, directness, vocabulary).- **Heuristics**: Core decision logic (e.g., "avoid meetings without agenda").- **Preferences**: Soft weights (e.g., Work > Social).- **Constraints**: Hard, user-defined rules.### 2. Authority & PolicyPolicies are declarative and evaluated **before** any generation occurs. This ensures safety and prevents prompt injection from bypassing limits.### 3. EscalationADG automatically escalates to you (Draft or Block) if:- Policy is violated.- Confidence falls below the defined threshold.- The request involves forbidden domains (Finance, Legal, Medical, etc.).## References- See [specification.md](references/specification.md) for the full architectural blueprint.- See [policy-dsl.md](references/policy-dsl.md) (To Be Created) for the formal policy language definition.## Forbidden ModelingADG is strictly forbidden from modeling or handling:- Secrets- Financial authority- Legal intent- Political opinions- Emotional vulnerability/trauma

Frequently asked questions