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ctx-purge — Claude Code skill: delete context data

A skill to permanently delete project context data in bulk or by session. Wipes the knowledge base, session records, and stats — this action cannot be undone.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add mksglu/context-mode --skill ctx-purge -a claude-code
Open on GitHub

What ctx-purge does

ctx-purge operates in two modes. Project scope deletes everything: the FTS5 knowledge base, all session data, events, and stats. Session scope wipes only one session; sibling sessions and project stats remain untouched. This is the only way to delete context-mode data — the built-in /clear and /compact commands do not affect it.

The skill asks for confirmation before deletion and reports exactly what was removed. Use it when the knowledge base has accumulated stale or wrong content that pollutes search results, or when switching to a fresh project without legacy data. For debugging, you can purge a single session while keeping your main work intact.

What it helps with

  • remove stale or incorrect indexed content polluting search results
  • delete one session's data for debugging without losing others
  • start fresh with a new project in the same environment
  • reset session statistics and event logs

Example prompts for the agent

  • /context-mode:ctx-purge with project scope
  • delete only the current session by sessionId
  • wipe the entire project knowledge base in one call

How to install ctx-purge

1Skills CLI (Vercel)

npx skills add mksglu/context-mode --skill ctx-purge -a claude-code

2Manually: put the files in place

~/.claude/skills/ctx-purge/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/ctx-purge/

From the same set7

The whole set →
context-mode mksglu This skill routes large files and command output through context-mode tools instead of Bash. Use it to inspect logs, test results, data files, or page snapshots. Claude Code CX Codex Cursor +1 2,900installs context-mode-ops mksglu This skill coordinates GitHub work and releases through 10-20 dynamic subagents. Use it for issue triage, PR reviews, adapter checks, and branch sync. Claude Code CX Codex Cursor +1 1,700installs ctx-upgrade mksglu A skill that pulls the latest context-mode from GitHub, rebuilds the plugin, reinstalls it globally, and reconfigures hooks. Run once, get a checklist of results. Claude Code CX Codex Cursor +1 1,600installs ctx-doctor mksglu Runs context-mode health checks directly inside your agent session. It inspects runtimes, hooks, FTS5, and package versions to troubleshoot setup issues. Claude Code CX Codex Cursor +1 1,600installs ctx-search mksglu Searches a persistent project knowledge base without reloading source files into context. Queries indexed code, documentation, and session memory via FTS5. Claude Code CX Codex Cursor +1 1,100installs ctx-index mksglu Indexes local files and directories into context-mode's FTS5 database. It allows future searches to pull exact snippets without reloading raw project files into context. Claude Code CX Codex Cursor +1 1,100installs

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Questions about ctx-purge

How do I install ctx-purge in Claude Code?

Run npx skills add mksglu/context-mode --skill ctx-purge -a claude-code, then find the skill file at ~/.claude/skills/ctx-purge/SKILL.md.

What does ctx-purge delete?

In project scope, it deletes the knowledge base, all session data, events, and stats. In session scope, only the chosen session is removed.

Is deletion reversible?

No. If you need the content back, you must re-index it from scratch.

See also

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