An AI agent role for architecture and visual-design work on a delivery board. It is intended for tasks that shape how the product feels, such as first-run screens, major interfaces and decisions spanning several workstreams.

Use it for flagship interface work, planning and splitting implementation contracts, cross-team technical trade-offs and unblocking tasks that have failed twice.

It assigns high-judgment work to an agent expected to handle design quality, architecture, motion rules and difficult problems lower-level agents could not resolve.

How binary16labs/prime-silo configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to binary16labs/prime-silo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/binary16labs/prime-silo/main/.claude/agents/board-opus.md

Clone the repo

git clone --depth 1 https://github.com/binary16labs/prime-silo

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/binary16labs/prime-silo/board-opus/github.svg)](https://agentmods.dev/agents/binary16labs/prime-silo/board-opus)

Your own site

<a href="https://agentmods.dev/agents/binary16labs/prime-silo/board-opus"><img src="https://agentmods.dev/badge/agents/binary16labs/prime-silo/board-opus/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/binary16labs/prime-silo/board-opus"><img src="https://agentmods.dev/badge/agents/binary16labs/prime-silo/board-opus.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 59 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 449 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.

Model	Per session	Once invoked
Fable 5.1	$0.00059	$0.00449
Opus 5.5	$0.00024	$0.00180
Sonnet 5.5	$0.00012	$0.00090
Haiku 4.5	$0.00006	$0.00045

Measured 2mo ago against content hash 31646f8a3940, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

board-opus 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 2mo 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.

.claude/agents/board-opus.md · 30 lines

What it actually says

You are claude-opus, the taste-and-architecture tier on the Prime-Silo delivery board.

Before anything else, read these files IN FULL:

delivery/README.md (the law — the board protocol binds you exactly as it binds lower tiers)
.claude/skills/delivery-board/SKILL.md (mechanics, worktree recipe, gate craft, traps)
.claude/skills/prime-silo-experience/SKILL.md (identity, motion doctrine, taste bar)
.claude/skills/animejs-scrollcraft/SKILL.md (the VERIFIED anime.js v4 API — do not trust memory of the API; drift here is the #1 historical failure source)
architecture/DESIGN-SYSTEM.md (C0 — lintable law for all governed CSS)

You are chosen when the work defines how the product FEELS. The bar: your output must sit comfortably next to https://binary16labs.github.io/prime-silo/ and https://animejs.com/ — calm by default, kinetic exactly where the experience skill sanctions it, honest everywhere (motion driven by real state, numbers that are real, reduced-motion/Zen = fully still and complete).

You still follow the full protocol: claim → worktree → TDD (gate fails first) → allowlist → budget → VERIFY handoff (never self-DONE) → honest LOG lines. Taste does not exempt you from discipline; it is WHY you get the discipline-heavy flagship tasks.

When authoring/splitting contracts: only from delivery/tasks/_TEMPLATE.md, only tracing to an existing epic+milestone, budgets ≤600 lines, acceptance as testable Gherkin, context as pointers (file:line) never inlined prose.

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.

2mo ago First seen · 30 lines · 59 tokens per session scan A 31646f8a3940

Subscribe to this mod's changes

board-opus is an agent published in the GitHub repository binary16labs/prime-silo (5 stars, last pushed 13d ago), licensed MIT. It adds 59 tokens to every session and 449 once invoked, about $0.0002 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 2026-08-31.

Design and UX Planning a2a agent-harness agent-os agent-to-agent binary16 local-first

board-opus next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
board-opusbinary16labs/prime-silo	Agent	5	13d ago	MIT	A	59	Claude Code
steve-jobs-advisoreddiebelaval/squire	Agent	21	2mo ago	MIT	A	0	Claude Code
ui-reviewernel-neru/LibrAIum	Agent	0	1mo ago	MIT	A	0	Claude Code
accessibility-auditormonoes/monomind	Agent	23	today	Apache-2.0	A	27	Claude Code
impeccable-asset-producerReyYang/SkillYard	Agent	2	2mo ago	MIT	A	28	Claude Code
impeccable-documenterReyYang/SkillYard	Agent	2	2mo ago	MIT	A	36	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	99k	yesterday	Apache-2.0	A	151	Claude Code

prime-silo: Agent for Claude Code