whitelist

whitelist is a command for coding agents from sagarmk/beacon-plugin. It costs 16 tokens per session (260 once invoked), scanned A, original, MIT.

A whitelist manager controls which directories Beacon may index, even when a parent directory is blocked.

In plain words
What is it for?
It shows, adds, removes, or clears approved paths; approved subdirectories are included automatically.
Why use it?
It lets you include a project directory that would otherwise be excluded from indexing.

Command

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the beacon plugin — 1 skill, 9 commands, 1 agent, 4 hooks shipped together

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 commands/sagarmk/beacon-plugin/whitelist
Clone the repo
git clone --depth 1 https://github.com/sagarmk/beacon-plugin

Or install beacon, the plugin that ships this one along with the rest of its 1 skill, 9 commands, 1 agent, 4 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for whitelist

README.md
[![agentmods](https://agentmods.dev/badge/commands/sagarmk/beacon-plugin/whitelist.svg)](https://agentmods.dev/commands/sagarmk/beacon-plugin/whitelist)
Your own site
<a href="https://agentmods.dev/commands/sagarmk/beacon-plugin/whitelist"><img src="https://agentmods.dev/badge/commands/sagarmk/beacon-plugin/whitelist.svg" alt="Measured on agentmods" height="20"></a>
Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 260 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00016 $0.00260
Opus 5 $0.00008 $0.00130
Sonnet 5 $0.00003 $0.00052
Haiku 4.5 $0.00002 $0.00026

Measured 3d ago against content hash ef6457ca6ce3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

whitelist scanned grade A with 0 findings 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 3d ago.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

commands/whitelist.md · 21 lines

What it actually says

/whitelist

Parse the user's arguments and run the appropriate subcommand:

  • /whitelist (no args) → node ${CLAUDE_PLUGIN_ROOT}/scripts/whitelist-manager.js show
  • /whitelist add [path]node ${CLAUDE_PLUGIN_ROOT}/scripts/whitelist-manager.js add [path] (defaults to current directory if no path given)
  • /whitelist remove <path>node ${CLAUDE_PLUGIN_ROOT}/scripts/whitelist-manager.js remove <path>
  • /whitelist clearnode ${CLAUDE_PLUGIN_ROOT}/scripts/whitelist-manager.js clear

Format the JSON output as a readable summary:

  • For show: list all whitelisted paths
  • For add/remove/clear: confirm the action and show the updated list

Whitelisted paths override the blacklist. Subdirectories of whitelisted paths are also allowed. This is useful for allowing indexing in project directories that happen to be under a blacklisted parent.

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. 3d ago First seen · 21 lines · 16 tokens per session scan A ef6457ca6ce3

Subscribe to this mod's changes

whitelist is a command published in the GitHub repository sagarmk/beacon-plugin (43 stars, last pushed 13d ago), licensed MIT. It adds 16 tokens to every session and 260 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.