atryum

A setup command for connecting an OpenCode project to Atryum approval gating, which requires approval before selected agent actions proceed.

In plain words
What is it for?
Use it to install the Atryum plugin, configure its server URL and authentication, and protect the configuration file.
Why use it?
It keeps approval settings and access credentials configured consistently while keeping secrets out of the project repository.

Command

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/validmind/atryum/atryum
Clone the repo
git clone --depth 1 https://github.com/validmind/atryum
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 337 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 $0.00009 $0.00337
Opus 5 $0.00005 $0.00169
Sonnet 5 $0.00002 $0.00067
Haiku 4.5 $0.00001 $0.00034

Measured 2d ago against content hash 5034c113d693, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

atryum 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 2d 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.

examples/opencode-plugin/commands/atryum.md · 25 lines

What it actually says

Set up Atryum approval gating for this OpenCode project.

Reference files:

  • @examples/opencode-plugin/atryum.ts
  • @examples/opencode-plugin/README.md

Workflow:

  1. Briefly explain what the plugin does.
  2. If the user has not already told you their Atryum base URL, ask for it and default to http://localhost:8080.
  3. If the user has not already given you a bearer token or token-minting command, explain how to get one from their Atryum web login and ask them to paste it. Wait for the user's reply before making file changes.
  4. Once you have what you need:
    • copy @examples/opencode-plugin/atryum.ts to .opencode/plugins/atryum.ts
    • write the secret config to ~/.config/opencode/atryum.json so it stays out of git
    • set the secret config file mode to 0600
    • store url plus either accessToken or tokenCommand
    • never echo the secret back in chat after it is provided
  5. If the user explicitly asks for project-local storage instead, write .opencode/atryum.json instead of the global config file and still keep it mode 0600.
  6. When you finish, list the files you created or changed and remind the user to restart OpenCode so the plugin loads.

If the user prefers short-lived OAuth, offer to store a tokenCommand instead of a raw accessToken.

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. 2d ago First seen · 25 lines · 9 tokens per session scan A 5034c113d693

Subscribe to this mod's changes

atryum is a command published in the GitHub repository validmind/atryum (11 stars, last pushed 21d ago), licensed Apache-2.0. It adds 9 tokens to every session and 337 once invoked, about $0.0000 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.