C

C — Moderate risk signals Graded October 16, 2026Several concerns worth a closer look before you install.Based on public adoption and transparency signals as of October 16, 2026. Our opinion, not a code audit or security guarantee.

AI agent skill · Developer tools

pstack-claude

Claude Code, Codex, Copilot, Pi, OpenCode, Gemini, and Prime Agent versions of Poteto's pstack. Rigorous agent workflows with Cursor primitives translated for other harnesses.

Bottom line: Signal-based grade (3/7 points): well starred on GitHub, public source code. This reflects adoption and transparency, not a code review.

Popularity score
39/100
Rank
#363 of 500
GitHub stars
2.6k

What it does

pstack-claude provides rigorous agent workflows and Cursor primitives translated across multiple AI platforms (Claude, Codex, Copilot, Pi, Gemini, and others). It enables structured, repeatable task orchestration patterns for AI agents with consistent syntax across different harnesses.

Who it’s for

AI builders and engineers who need portable agent workflow patterns across multiple AI platforms. Executives evaluating standardized agent orchestration approaches.

Copy-paste setup

Check these steps against the project’s own instructions before running anything.

Verify against the repo README at https://github.com/michael-denyer/pstack-claude (opens external site) for current setup instructions, as this is a framework with multi-platform support and requirements may vary by target harness (Claude Desktop, standalone, etc.).

Risks

  • Prompt injection: Workflow definitions may be vulnerable to adversarial input if user-supplied task parameters aren't sanitized
  • Cross-platform inconsistency: Translation across different AI harnesses may introduce security gaps if platform-specific safety guardrails differ
  • Supply chain: Dependency on Poteto's pstack; changes or compromises upstream affect all translated versions
  • Credentials scope: Agent workflows may inadvertently request or cache credentials with broader scope than necessary
  • Data exfiltration: Agent outputs flowing across multiple platforms increases exposure surface if workflows handle sensitive data

How to stay secure

Hardening Guide: pstack-claude

Least-privilege permissions

  • Restrict credential scope: Grant the agent only the specific permissions it needs for its assigned task (e.g., read-only access to one folder, not full account access). Review monthly.
  • Use temporary credentials: Employ time-limited tokens or passwords instead of permanent ones; they expire automatically and limit damage if compromised.
  • Separate admin access: Never run workflows with administrator-level permissions; use standard user accounts and elevate only when absolutely required.
  • Audit role assignments: Maintain a list of what each workflow can access and why; remove access immediately when tasks change or end.

Network isolation

  • Limit external connections: Configure workflows to communicate only with approved services (approved APIs, internal databases). Block all others by default.
  • Use VPN or private networks: Route sensitive workflow operations through encrypted, private channels rather than the public internet.
  • Disable cloud sync when sensitive: If workflows handle confidential data, disable automatic cloud backup or sync features that might leak data across platforms.
  • Sandbox third-party integrations: When workflows connect to external AI tools or services, isolate them in separate network zones to contain breaches.

Monitoring

  • Log all workflow inputs and outputs: Record what data enters and leaves each workflow; review logs weekly for unexpected activity.
  • Alert on permission changes: Set up automatic notifications if a workflow requests new credentials or expanded access.
  • Track cross-platform transfers: Monitor when data moves between different AI platforms (Claude, Copilot, Gemini, etc.); document the reason.
  • Version control workflow definitions: Store all workflow configurations in a tracked system; any change should require approval and create an audit trail.

Red flags to watch for

  • Unexpected data requests: If a workflow suddenly asks for passwords, API keys, or access to new systems, pause and investigate before approving.
  • Unusual output volumes: Workflows generating far more data than normal, or exporting data to unknown destinations, may indicate compromise or data exfiltration.
  • Definition changes from upstream: If Poteto's pstack updates introduce new features or connections without clear documentation, review before deploying to your workflows.
  • Inconsistent behavior across platforms: If the same workflow behaves differently on Claude versus Gemini (e.g., different data handling), this signals potential security gaps in translation.

Alternatives

  • LangChain Agent orchestration – mature, widely-adopted framework with built-in safety patterns
  • AutoGPT/AgentGPT – single-platform autonomous agents with explicit goal definitions
  • Anthropic Prompt Caching + tool use – native Claude patterns without additional abstraction layer
  • LlamaIndex agents – production-grade orchestration with structured retrieval and decision trees

Sources