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context-guard

v0.7.67

Per-session context-window observability plus the first shipped consumer: a statusline wrapper tees each session's context_window fields to a per-session snapshot file, a zone resolver classifies usage into smart/acceptable/dumb bands (percentage bands plus window-class token bands, conservative-min combination, zones.json SSOT with shipped defaults), a reader contract fixes how consuming sessions interpret the snapshots, and zone-crossing hooks report once per transition into a worse zone across two channels: the continuation menu to the operator, who owns that choice, and to the model only the zone determination plus the counter-steer that a zone word is not a decay signal (advisory by default; an optional blocking mode gates new mutating work on a fresh dumb-zone snapshot with handoff-writing exempt), with a PostCompact hook persisting an evidence-degraded marker.

Claude Code1 Skill

By Melodic SoftwareLicense: MIT18 GitHub starsUpdated 2 hours ago

Directory evidence

Runtimes
Claude Code
Parsed components
1 skill or MCP entry
Source updated
Sep 24, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install context-guard for Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install context-guard-3@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/melodic-software/claude-code-plugins

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/context-guard/.

Plugin files

plugins/context-guard/
├── .claude-plugin/plugin.json
└── skills/setup/SKILL.md

Included Skills1

setupskills/setup/SKILL.md

Verify the context-guard plugin's wiring on this machine: jq, the installed statusline shim, statusline wiring (including legacy version-pinned plugin-cache paths), and live-session snapshot freshness. Print the exact statusline edit for the operator, and install the shim plus seed ~/.claude/context-guard/zones.json from the shipped defaults. Use when: 'set up context-guard', 'is the context tee working', 'wire the context statusline', a consumer reports zone unknown in a live session, or after a plugin update. Actions: check (read-only; never edits settings), apply (writes ONLY inside ~/.claude/context-guard/, the shim and zones.json, on explicit request).

Plugin manifests1

plugins/context-guard/.claude-plugin/plugin.json
{
  "$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
  "name": "context-guard",
  "version": "0.7.67",
  "description": "Per-session context-window observability plus the first shipped consumer: a statusline wrapper tees each session's context_window fields to a per-session snapshot file, a zone resolver classifies usage into smart/acceptable/dumb bands (percentage bands plus window-class token bands, conservative-min combination, zones.json SSOT with shipped defaults), a reader contract fixes how consuming sessions interpret the snapshots, and zone-crossing hooks report once per transition into a worse zone across two channels: the continuation menu to the operator, who owns that choice, and to the model only the zone determination plus the counter-steer that a zone word is not a decay signal (advisory by default; an optional blocking mode gates new mutating work on a fresh dumb-zone snapshot with handoff-writing exempt), with a PostCompact hook persisting an evidence-degraded marker.",
  "author": {
    "name": "Melodic Software",
    "email": "[email protected]"
  },
  "license": "MIT",
  "keywords": [
    "context-window",
    "statusline",
    "tee",
    "zones",
    "context-degradation",
    "session",
    "hooks"
  ],
  "userConfig": {
    "context_guard_hooks_enabled": {
      "type": "boolean",
      "title": "context-guard hooks kill switch",
      "description": "Master switch for the zone-crossing injection, blocking gate, and PostCompact marker hooks",
      "default": true
    },
    "zone_hook_mode": {
      "type": "string",
      "title": "Zone hook posture",
      "description": "advisory (default) injects guidance only; blocking additionally denies new Write/Edit/NotebookEdit/Agent/Workflow calls on a fresh dumb-zone snapshot past the grace budget (fail-open on unknown; handoff-path writes, reads, Bash, and Skill stay allowed)",
      "default": "advisory"
    },
    "zone_gate_grace_calls": {
      "type": "string",
      "title": "Blocking-gate grace budget",
      "description": "Blocking mode only: number of matched tool calls allowed after the session first resolves dumb before the gate denies (in-script default 20)",
      "default": "20"
    }
  }
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[context-guard on Agent Plugins Marketplace](https://pluginsmp.com/plugins/context-guard-3)