feat(context-mode): add context-mode plugin — context window optimizer

[creativerezz]

Summary

Adds context-mode as a new plugin under plugins/integrations/ — a context window optimizer that saves 40–60% of agent context by auto-indexing tool output into a persistent FTS5 knowledge base, persisting session state through compaction, and enabling cross-session search.

Background

Context Mode (npm:context-mode) is a Pi extension + MCP tool suite by mksglu that solves a universal pain point for AI coding agents: tool output consuming 40%+ of the context window. It runs on 15+ agent platforms (Pi, Claude Code, Cursor, Codex, Gemini CLI, etc.).

What's included

File	Purpose
plugins/integrations/context-mode/.claude-plugin/plugin.json	Plugin manifest (v1.0.0, category: integrations)
plugins/integrations/context-mode/skills/context-mode/SKILL.md	Full skill with install guides for all platforms, tool reference, usage patterns, session continuity docs
.claude-plugin/marketplace.json	Registered under the integrations category
README.md	Added install commands, table row, repo structure entry

Install

# Claude Code
/plugin install context-mode@stackone-agent-plugins
# Any agent (Skills CLI)
npx skills add stackonehq/agent-plugins@context-mode
# Standalone install
npx skills add mksglu/context-mode

Checklist

• Plugin follows existing directory structure (.claude-plugin/plugin.json + skills/<name>/SKILL.md)
• Marketplace manifest updated
• README install instructions, table, and repo tree updated

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Summary by cubic

Adds the context-mode integration plugin to cut context window usage by 40–60% via FTS5 indexing, with session compaction and cross‑session search. Also adds repo skills for plugin authoring/reviews and fixes release version tracking for context-mode.

• New Features

  • New plugin at plugins/integrations/context-mode/ with plugin.json and skills/context-mode/SKILL.md; registered in .claude-plugin/marketplace.json and README updated with install commands and table entry.
  • Works on 15+ platforms (Pi, Claude Code, Cursor, Codex) via hooks/MCP; ships ctx_execute, ctx_batch_execute, ctx_search, ctx_index, ctx_stats, ctx_insight.
  • Repo tooling: adds .claude/agents/skill-reviewer.md, .claude/skills/new-plugin/, .claude/skills/skill-conventions/, and enables plugin-dev@claude-plugins-official in .claude/settings.json.

• Bug Fixes

  • Tracks plugins/integrations/context-mode/.claude-plugin/plugin.json in .release-please-config.jsonextra-files so its version stays in sync with releases.

^{Written for commit 44557d3. Summary will update on new commits.}

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds the new context-mode integration plugin/skill to the repository and exposes it via the Claude plugin marketplace and repo README so users can install/discover it.

Changes:

• Added context-mode skill documentation (tools, install options, usage patterns).
• Added Claude plugin manifest for context-mode and registered it in the marketplace.
• Updated root README to include context-mode in install instructions and the plugin directory list.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
plugins/integrations/context-mode/skills/context-mode/SKILL.md	Adds the Context Mode skill doc (overview, tools, install, usage).
plugins/integrations/context-mode/.claude-plugin/plugin.json	Adds the Claude plugin manifest metadata for context-mode.
README.md	Documents context-mode installation and lists it among available plugins.
.claude-plugin/marketplace.json	Registers context-mode in the Claude plugin marketplace index.

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[cubic-dev-ai]

No issues found across 4 files

<sub>Auto-approved: This PR adds a new integration plugin with only metadata, documentation, and config files—no logic changes, no impact on existing systems, and no security risks, making it safe to auto-approve.

Re-trigger cubic</sub>

[cubic-dev-ai]

0 issues found across 5 files (changes from recent commits).

<sub>Auto-approved: This PR adds documentation, plugin manifest, skills, and repository metadata for a third-party context-mode integration, with no changes to core business logic, production infrastructure, or security-sensitive code.

Re-trigger cubic</sub>