What it can do: claude-harness

Plugin bundle · Chachamaru127

What claude-harness declares, asks for and runs, according to the marketplaces we read. Installs into the AI tool as a plugin bundle; what it starts is listed below. None of the marketplaces we read publishes its tools or the settings it asks for. As of our marketplace pass on 2026-10-12.

This is not a security audit. We list what the marketplaces publish about this plugin: what it declares, what it asks for and what it runs. We do not run or inspect its code, and a verified mark is the marketplace's statement, not ours.

Where it runs

Installs into the AI tool as a plugin bundle; what it starts is listed below.As declared on: Claude Code: claude-plugins-community.

What it declares

None of the marketplaces we read publishes a list of tools for it.

Prompts and resources: the marketplaces we read do not publish them.

What it asks for

None of the marketplaces we read lists environment variables for it.

Names only: we keep no values, examples or descriptions of these variables. OAuth scopes and install-time settings are not published by the marketplaces we read.

What it runs besides MCP

Skills: 21 As declared on: Claude Code: claude-plugins-community.

agent-browser
breezing
cc-update-review
ci
cursor-ask
cursor-do
cursor-review
cursor-setup
failure-codifier
harness-accept
harness-loop
harness-plan

Show the remaining 9

harness-plan-brief
harness-progress
harness-release
harness-review
harness-setup
harness-sync
harness-work
maintenance
memory

Agents: 4 As declared on: Claude Code: claude-plugins-community.

advisor
reviewer
test-wiring-auditor
worker

Hooks: 27 As declared on: Claude Code: claude-plugins-community.

ConfigChange
CwdChanged
Elicitation
ElicitationResult
FileChanged
InstructionsLoaded
Notification
PermissionDenied
PermissionRequest
PostCompact
PostToolUse
PostToolUseFailure

Show the remaining 15

PreCompact
PreToolUse
SessionEnd
SessionStart
Setup
Stop
StopFailure
SubagentStart
SubagentStop
TaskCompleted
TaskCreated
TeammateIdle
UserPromptSubmit
WorktreeCreate
WorktreeRemove

Who answers for it

Chachamaru127

No marketplace we read marks it or its publisher as verified.
License: MIT.
Last change we saw: 2026-10-12.
The repository github.com/chachamaru127/claude-code-harness belongs to the account the publisher is listed under on Claude Code: claude-plugins-community.

How it has changed

Its tools, settings, hooks and composition have not changed since we started watching it.

In context

Median number of secrets a plugin bundle asks for on the marketplaces we read: 0.0. This one asks for: 0.
Share of plugin bundles that run on a remote server: 17%.

Where it is published and how its figures have moved

Compare it side by side with similar plugins

Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on 2026-10-12. We publish no contact details for plugin publishers.