Purpose
pstack is a suite of skills for AI-assisted software development, rather than a single prompt. Its main entry point, /poteto-mode, selects a workflow for an investigation, bug fix, feature, performance issue, or review and calls other skills when needed. You can also use /how to understand code, /interrogate to review changes, or /poteto-help to find an entry point. This is how the upstream project describes its workflow; we have not tested the results.
About the author
Author Lauren Tan (poteto) has worked with large codebases at Meta, Netflix, and Cursor and helps build and maintain React Compiler as a member of the React core team. According to her profile, she now works on Grok Bot and Cursor at SpaceX Super Intelligence. The MIT license names her as copyright holder, and the project is hosted in Cursor’s plugins repository.
When to use it
For work that needs root-cause investigation, changes across files, performance measurement, or risk review, give the agent a clear goal and a check that can pass or fail, then let /poteto-mode select the workflow. The official guide shows this path from investigation to verification. We think a small copy edit rarely needs a full multi-agent review. That is usage advice, not a performance guarantee.
Example
Suppose a page scrolls by itself at regular intervals while idle. In Cursor, invoke /poteto-mode, describe the symptom, and ask the agent to reproduce it, find the cause, fix it, and show observable verification. According to the core skill, it chooses a workflow and uses other skills as needed. If you only want to understand the existing code first, use /how directly. This is a hypothetical example; we have not run it.
Limitations
pstack is designed primarily for Cursor. Some workflows use Cursor subagents, Custom Modes, /loop, or Automations. The upstream help skill says other tools may read the Agent Skills files without supporting the entire workflow. Claude Code has an adapter, but steps requiring Cursor-only features are skipped. Subagents and review panels also cost extra time and model tokens. You still need to review the requirements, changes, and evidence yourself.
Installation
The official setup guide says to run /add-plugin pstack in Cursor chat, then /setup-pstack to choose a reasoning budget and models for each role. Start a task with /poteto-mode. In Claude Code, run /plugin marketplace add cursor/plugins, followed by /plugin install pstack@cursor-plugins. Its commands use the pstack: prefix, such as /pstack:setup-pstack and /pstack:poteto-mode. This site only shows the commands; it does not run them. The upstream README says Claude Code leaves auto-update off for third-party marketplaces by default; consult it when checking for updates.