openrig-herdr

openrig-herdr is a skill for Claude Code, Codex from mvschwarz/openrig. It costs 132 tokens per session (2,028 once invoked), scanned A, original, Apache-2.0.

A command-line guide for opening live terminals from OpenRig, a system that groups agents into rigs, pods, missions, or slices, inside herdr, a tiled terminal view.

In plain words
What is it for?
It is for opening rig or group views, listing available views, checking provider health, and watching or driving multiple agent terminals.
Why use it?
It lets you see and interact with the actual running agent sessions instead of static snapshots, while keeping OpenRig responsible for which agents appear.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It is for opening rig or group views, listing available views, checking provider health, and watching or driving multiple agent terminals.

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Install with agentmods
npx agentmods add skills/mvschwarz/openrig/openrig-herdr
About the project

OpenRig is a software harness that coordinates Claude Code and Codex coding agents as one system, with agent teams defined in YAML and launched together. It is for organizing persistent teams of coding agents that can delegate work to specialists and return results or decisions. The catalogue lists 53 skills and one plugin as add-ons for OpenRig.

mvschwarz/openrig · 7,999 stars · on GitHub · openrig.dev

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 mvschwarz/openrig --skill openrig-herdr
Clone the repo
git clone --depth 1 https://github.com/mvschwarz/openrig

Made for: Claude Code, Codex.

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 openrig-herdr

README.md
[![agentmods](https://agentmods.dev/badge/skills/mvschwarz/openrig/openrig-herdr/github.svg)](https://agentmods.dev/skills/mvschwarz/openrig/openrig-herdr)
Your own site
<a href="https://agentmods.dev/skills/mvschwarz/openrig/openrig-herdr"><img src="https://agentmods.dev/badge/skills/mvschwarz/openrig/openrig-herdr/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for openrig-herdr

Your own site · 80×15
<a href="https://agentmods.dev/skills/mvschwarz/openrig/openrig-herdr"><img src="https://agentmods.dev/badge/skills/mvschwarz/openrig/openrig-herdr.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 132 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,028 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00132 $0.02028
Opus 5.5 $0.00053 $0.00811
Sonnet 5.5 $0.00026 $0.00406
Haiku 4.5 $0.00013 $0.00203

Measured 1mo ago against content hash 37508a02f50b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

openrig-herdr 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 1mo 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.

packages/daemon/specs/agents/shared/skills/core/openrig-herdr/SKILL.md · 154 lines

How it starts

The opening of the file, as written. The whole thing — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.

openrig-herdr

OpenRig decides which agents make up a view (a rig, a pod, a mission, a slice, or a saved group); herdr renders the pixels. A view opens as live, interactive terminal tiles — each tile is a nested tmux attach to a daemon-owned agent session, so you get the real session, not a snapshot. OpenRig owns the semantics; herdr owns the surface. You drive it entirely through the rig terminal CLI, which rides the installed herdr binary at arm's length — never link, embed, or plugin it.

The whole surface — three verbs

rig terminal open <view> [--provider herdr|cmux] [--json]   # herdr is the default provider
rig terminal views [--json]                                 # list openable views (saved + derived)
rig terminal status [--provider] [--json]                   # provider liveness / health

<view> resolves, in order, to one of:

  • a rig name — every live agent in that rig, auto-laid-out;
  • pod:<rig>/<podNamespace> — every live agent in one pod of a rig (the rig's inventory filtered by pod);
  • mission:<id> — the agents working that mission (derived live from topology);
  • slice:<id> — the agents working that slice (derived live);
  • a saved-view name — a user-defined group (see Saved views).

Compose a view from a sentence

An agent asked "open all my rigs plus a mission as views" runs one open per target:

rig terminal open acme-web                     # a whole rig, live agents as tiles
rig terminal open mission:site-relaunch        # exactly the agents working the mission
rig terminal open slice:search-filters      # the agents working one slice

No hand-listing of seats: the mission/slice membership is derived from live topology at open time.

Read the result honestly — partial and degrade

The result is a partition — every seat lands in exactly one bucket, each named:

  • opened — the live agents now showing as tiles.
  • absent — seats in the view that aren't currently live: named and skipped, never silently dropped. A view that opens some of its seats is a success (the partial is disclosed) and exits 0. Only a view where no pane opens exits non-zero.
  • degraded — an agent that structurally cannot tile, named with the reason. The v1 case: an agent on a host registered over HTTP has no ssh path, so its tile can't be composed — it reads as "host <id> is http-registered; tiles need ssh" and is skipped, never dropped. (ssh-reachable hosts tile via an ssh-wrapped attach; full http-host tiling is deferred to the cross-host transport seam.)

Read the full file on GitHub · 154 lines

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. 1mo ago First seen · 154 lines · 132 tokens per session scan A 37508a02f50b

Subscribe to this mod's changes

openrig-herdr is a skill published in the GitHub repository mvschwarz/openrig (7,999 stars, last pushed today), licensed Apache-2.0. It adds 132 tokens to every session and 2,028 once invoked, about $0.0005 per session on Opus 5.5. 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.