list-plugins

A skill that reads Claude Code's settings file to show which plugins are currently enabled and where they come from.

In plain words
What is it for?
Use it to list active plugins with their marketplace IDs and descriptions. It can inspect enabled-plugin entries and ignore disabled ones.
Why use it?
It saves you from checking configuration by hand or confusing installed plugins with active ones. It also reports clear messages when the settings file or enabled-plugin list is missing.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/ghostwright/phantom/list-plugins
Any agent
npx skills add ghostwright/phantom --skill list-plugins
Clone the repo
git clone --depth 1 https://github.com/ghostwright/phantom

Made for: Claude Code, Codex.

Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 542 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00021 $0.00542
Opus 5 $0.00010 $0.00271
Sonnet 5 $0.00004 $0.00108
Haiku 4.5 $0.00002 $0.00054

Measured yesterday against content hash 1328db0d2ebc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

list-plugins scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

Use Read on `/home/phantom/.claude/settings.json`. Parse it as JSON.
skills-builtin/list-plugins/SKILL.md · 58 lines

What it actually says

List plugins

Goal

Tell the operator which plugins are currently active for this agent, with their marketplace ids and a short description, in under 100 words.

Steps

1. Read settings.json

Use Read on /home/phantom/.claude/settings.json. Parse it as JSON.

If the file does not exist, return: "No settings.json yet. The dashboard plugins tab is at /ui/dashboard/#/plugins."

If the file exists but has no enabledPlugins field, return: "No plugins enabled yet. Browse the marketplace at /ui/dashboard/#/plugins."

Success criteria: you have either a parsed enabledPlugins map or a clear empty-state message ready.

2. Filter active entries

For each key: value in enabledPlugins, treat the entry as active when value is true, a non-empty array, or a non-empty object. Treat false and missing entries as inactive.

Success criteria: you have a list of plugin@marketplace keys for active plugins only.

3. Render the list

Format the response like this:

You have N plugins enabled:

  • linear at claude-plugins-official - Linear issue tracking
  • notion at claude-plugins-official - Notion workspace
  • slack at claude-plugins-official - Slack workspace messages
  • claude-md-management at claude-plugins-official - CLAUDE.md maintenance

Manage plugins at /ui/dashboard/#/plugins.

For each row, the descriptor after the dash is a short fallback string based on the plugin name. If you do not recognize a plugin id, use just the marketplace id as the descriptor.

Success criteria: the response shows the real current keys, the descriptors are honest (no fabricated descriptions for unknown plugins), and the dashboard URL is included.

Rules

  • Never fabricate a plugin that is not in settings.json.
  • Never use em dashes in the response. Regular hyphens are fine.
  • Always include the dashboard URL.
  • Keep the response under 100 words.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 58 lines · 21 tokens per session scan B 1328db0d2ebc

Subscribe to this mod's changes

list-plugins is a skill published in the GitHub repository ghostwright/phantom (1,463 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 21 tokens to every session and 542 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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