Ctx Purge (Grade A) logo

Ctx Purge (Grade A)Security-tested development skill for Claude AI. Grade A. Purge the context-mode knowledge base. Permanently deletes all indexed content and resets session stats. This is destructive and cannot be und

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Daniel NikulshynReviewed by Daniel Nikulshyn·Updated July 2026

Overview

Ctx Purge is a security-tested development skill for Claude AI that permanently deletes all indexed content and resets session stats. It is used to purge the context-mode knowledge base and is destructive, meaning it cannot be undone. The skill supports two scopes: project scope, which wipes everything including the knowledge base, session DB rows, events markdown, and stats; and session scope, which wipes only the matching session's rows and FTS5 chunks. The tool is user-invocable and requires confirmation before performing the purge action.

Key features

  • Purge context-mode knowledge base
  • Reset session stats
  • Support for project and session scopes
  • User-invocable with confirmation
  • Reporting of purge results

Pricing

Model
Free
Category
Skills
Rating
No reviews yet

Use cases

KB Cleanup

When the knowledge base contains stale or incorrect content polluting search results, use ctx_purge to wipe the project or session data.

Session Isolation

Use scoped ctx_purge to isolate a polluted session without losing the main working session's stats.

Pros & Cons

Pros

  • Allows for a fresh start by completely deleting session data
  • Supports both project and session scopes for targeted purging
  • Only mechanism to delete session data, ensuring data cleanliness

Cons

  • Destructive and irreversible, requiring careful consideration before use
  • No undo mechanism available, necessitating re-indexing of content if needed again

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Q&A

How is Ctx Purge invoked?

Ctx Purge is user-invocable and requires confirmation before performing the purge action. It can be invoked with specific parameters to choose the scope of the purge.

Asked by Robert Ainsworth · Aug 12, 2025

Is Ctx Purge reversible?

No, Ctx Purge is not reversible. It permanently deletes data and requires careful consideration before use. There is no undo mechanism available.

Asked by Jamal Carter · Jun 8, 2025

What scopes are supported by Ctx Purge?

Ctx Purge supports two scopes: project scope, which wipes everything, and session scope, which wipes only the matching session's data.

Asked by Camille Laurent · May 31, 2025

What does Ctx Purge do?

Ctx Purge permanently deletes all indexed content and resets session stats in the context-mode knowledge base. It is a destructive action that cannot be undone.

Asked by Fiorella Bianchi · May 9, 2025

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