setup-benny

setup-benny is a skill for Claude Code, Codex from OutlineDriven/odin-claude-plugin. It costs 73 tokens per session (824 once invoked), scanned A, original, Apache-2.0.

A safety-focused installer for third-party automation packs or template repositories.

In plain words
What is it for?
Fetching an archive, checking its files against SHA-256 hashes, transforming placeholders, and moving the result into a target directory.
Why use it?
It verifies downloaded files, applies required substitutions, and checks for conflicts before installing them locally.

Skill for Claude CodeCodex

Written for Claude Code and Codex: disable-model-invocation in frontmatter, but also agents/openai.yaml present.

Part of the odin-agent plugin — 46 skills shipped together

Good fit Fetching an archive, checking its files against SHA-256 hashes, transforming placeholders, and…

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Install with agentmods
npx agentmods add skills/outlinedriven/odin-claude-plugin/setup-benny
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.

Any agent
npx skills add OutlineDriven/odin-claude-plugin --skill setup-benny
Clone the repo
git clone --depth 1 https://github.com/OutlineDriven/odin-claude-plugin

Made for: Claude Code, Codex.

Or install odin-agent, the plugin that ships this one along with the rest of its 46 skills.

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 setup-benny

README.md
[![agentmods](https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/setup-benny.svg)](https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/setup-benny)
Your own site
<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/setup-benny"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/setup-benny.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 824 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00073 $0.00824
Opus 5 $0.00036 $0.00412
Sonnet 5 $0.00015 $0.00165
Haiku 4.5 $0.00007 $0.00082

Measured 3d ago against content hash ae1907336be0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

setup-benny 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.

plugins/odin-agent/skills/setup-benny/SKILL.md · 43 lines

How it starts

The opening of the file, as written. The whole thing — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Install automation pack

Contract

Field Bound contract
Trigger User needs to install a third-party automation pack or template repository safely and deterministically
Authority Reversible local write (hash-guarded rollback). Explicit human invocation starts the install; preview every target and consequence before writing
Side effect Fetches the source archive to a scratch location, verifies all files against expected hashes, applies placeholder transformations, and atomically moves files to the target directory
Done The pack is installed in the target directory and passes safety checks

Inputs

  • Source archive URL (required): the URL to fetch the pack or template repository from.
  • Target directory (required): the local path where the pack will be installed.
  • Expected file manifest with hashes (required): a mapping of file paths to expected SHA-256 hashes, used to verify every extracted file.
  • Required file transformations (required): placeholder replacements keyed by strict unique anchors, applied to specified files after extraction.

Procedure

  1. Fetch the source archive to a scratch location. Download the archive from the source URL to a temporary directory. Done when: the archive is downloaded and extracted to the scratch location.
  2. Verify all extracted files against the expected manifest and blob IDs. For every file in the extracted tree, compute its SHA-256 hash and compare against the expected manifest. Fail with hash mismatch if any file's hash does not match. Done when: every extracted file's hash matches the expected manifest.
  3. Apply required transformations using strict unique anchors. For each transformation: locate the unique anchor string in the target file, replace it with the specified value, and confirm the anchor was found exactly once. Fail if an anchor is not found or appears more than once. Done when: all transformations are applied and every anchor was found exactly once.
  4. Check the target directory for conflicts. If the target directory exists and contains files, compare each existing file's hash against the managed-state manifest from a prior install. Block if existing files differ from managed state, indicating manual modifications. Done when: the target directory is confirmed empty or matches prior managed state.
  5. Atomically move files to the target and save the applied manifest for rollback. Move all files from the scratch location to the target directory in one operation. Write the applied manifest (file paths, post-transformation hashes, and the original source URL) to a managed-state file beside the target for rollback on future runs. Done when: all files are moved to the target and the applied manifest is saved.

Read the full file on GitHub · 43 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 43 lines · 73 tokens per session scan A ae1907336be0

Subscribe to this mod's changes

setup-benny is a skill published in the GitHub repository OutlineDriven/odin-claude-plugin (35 stars, last pushed today), licensed Apache-2.0. It adds 73 tokens to every session and 824 once invoked, about $0.0004 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 2026-09-04.

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