Claude Code mod

harness-ops

Claude Code operations: audit-skill-visibility (skills the listing budget hides), inventory (every invocable surface), audit-install-state, audit-performance (slowness), audit-mod-posture (mods and the guard), audit-native-overlap (skills duplicating built-ins), observability (telemetry), known-issues, changelog, behavior-probes, prerequisites, check, machine-profile, plugins (update the fleet), morning-brief, lanes (background loop sessions), setup. Plus opt-in hook event logs.

28 starsContext & usage mods Plugin marketplaceValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code
/plugin marketplace add melodic-software/claude-code-plugins
/plugin install harness-ops@melodic-software

Mods install like plugins. Run /reload-plugins or start a new session to load it.

What it can access

Reach
L2Writes or runs: runs processes, reads env vars, draws
Sees
classic hooks
Hooks
classic.ConfigChangeclassic.CwdChangedclassic.DirectoryAddedclassic.Elicitationclassic.ElicitationResultclassic.InstructionsLoadedclassic.Notificationclassic.PermissionDeniedclassic.PermissionRequestclassic.PostCompactclassic.PostModelSwitchclassic.PostToolBatchclassic.PostToolUseFailureclassic.PreCompactclassic.PreModelSwitchclassic.SessionEndclassic.SessionStartclassic.Setupclassic.Stopclassic.StopFailureclassic.SubagentStartclassic.SubagentStopclassic.TaskCompletedclassic.TaskCreatedclassic.TeammateIdleclassic.UserPromptExpansionclassic.UserPromptSubmitclassic.WorktreeRemove

From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.

How Claude Code mods work

  • A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
  • It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
  • Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
  • Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Claude Code docs

Details

Repository
melodic-software/claude-code-plugins
Folder
plugins/harness-ops
Marketplace
melodic-software
Author
Melodic Software
Type
Context & usage mods
License
MIT
Last updated
1 November 2026
Listed in
awesome-claude-code-mods

FAQ

What is harness-ops?

Claude Code operations: audit-skill-visibility (skills the listing budget hides), inventory (every invocable surface), audit-install-state, audit-performance (slowness), audit-mod-posture (mods and the guard), audit-native-overlap (skills duplicating built-ins), observability (telemetry), known-issues, changelog, behavior-probes, prerequisites, check, machine-profile, plugins (update the fleet), morning-brief, lanes (background loop sessions), setup. Plus opt-in hook event logs. It is a mod for Claude Code, from melodic-software/claude-code-plugins on GitHub.

What can the harness-ops mod access?

Its widest reach is "writes or runs" (runs processes, reads env vars, draws). It sees classic hooks. Like any mod, it runs with your permissions.

How do I install harness-ops?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add melodic-software/claude-code-plugins and then /plugin install harness-ops@melodic-software.

Is harness-ops popular?

melodic-software/claude-code-plugins has 28 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 1 November 2026.

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