aythya

aythya is an agent for coding agents from markmhendrickson/ateles. It costs 0 tokens per session (2,557 once invoked), scanned A, original, MIT.

A visual and brand design agent that defines a brand’s identity, design system, colour, typography, and overall visual language. A design system is a shared set of rules for making an interface look consistent.

In plain words
What is it for?
Creating brand identity guidance, shaping design systems, choosing colours and type, and maintaining visual consistency.
Why use it?
It helps keep visual decisions consistent across products and materials. It replaces isolated design choices with principles that can be applied repeatedly.

Agent

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 agents/markmhendrickson/ateles/aythya
Clone the repo
git clone --depth 1 https://github.com/markmhendrickson/ateles

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 aythya

README.md
[![agentmods](https://agentmods.dev/badge/agents/markmhendrickson/ateles/aythya.svg)](https://agentmods.dev/agents/markmhendrickson/ateles/aythya)
Your own site
<a href="https://agentmods.dev/agents/markmhendrickson/ateles/aythya"><img src="https://agentmods.dev/badge/agents/markmhendrickson/ateles/aythya.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,557 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 $0.00000 $0.02557
Opus 5 $0.00000 $0.01278
Sonnet 5 $0.00000 $0.00511
Haiku 4.5 $0.00000 $0.00256

Measured yesterday against content hash d4c4b7d4df0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

aythya 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 yesterday.

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.

docs/agents/aythya.md · 174 lines

How it starts

The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.


entity_id: ent_fe71134e46209c21cf413b9b entity_type: agent_definition name: aythya description: Visual and brand designer. Owns brand identity, design system, aesthetic language, colour, type, and visual consistency. Thinks in systems — every visual choice derivable from principles, not made case by case. tier: T4 genus: Aythya status: planned agent_grant: service observation_source_default: llm_summary tool_allowlist:

  • mcp__mcpsrv_neotoma__retrieve_entities
  • mcp__mcpsrv_neotoma__retrieve_entity_snapshot
  • mcp__mcpsrv_neotoma__retrieve_related_entities
  • mcp__mcpsrv_neotoma__store
  • mcp__mcpsrv_neotoma__correct
  • WebSearch
  • WebFetch canonical_context_entities:
  • operator_profile

aythya

Visual and brand designer. Owns brand identity, design system, aesthetic language, colour, type, and visual consistency. Thinks in systems — every visual choice derivable from principles, not made case by case.

Definition

Field Value
Tier T4
Genus Aythya
Status planned
Agent grant service
Observation source llm_summary
Allowed tools mcp__mcpsrv_neotoma__retrieve_entities, mcp__mcpsrv_neotoma__retrieve_entity_snapshot, mcp__mcpsrv_neotoma__retrieve_related_entities, mcp__mcpsrv_neotoma__store, mcp__mcpsrv_neotoma__correct, WebSearch, WebFetch
Entity ID ent_fe71134e46209c21cf413b9b

Prompt

Aythya — Visual & Brand Designer

Identity

You are Aythya, the visual and brand design agent in the Ateles swarm. Your genus is the diving duck (Aythya sp.) — goes deep, retrieves what others miss. You own the visual layer: brand identity, design system, aesthetic language, colour, type, and the visual consistency that makes a project look considered rather than assembled. You think in terms of systems, not one-off decisions — every visual choice should be derivable from a set of principles, not made case by case.

Read the full file on GitHub · 174 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. yesterday First seen · 174 lines · 0 tokens per session scan A d4c4b7d4df0a

Subscribe to this mod's changes

aythya is an agent published in the GitHub repository markmhendrickson/ateles (6 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,557 tokens. 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 2026-09-03.

Related

Other agents, from other repositories

drupal

Fully autonomous pentest sub agent using MCP-backed Darkmoon toolbox for Drupal applications (core, contrib modules, JSON:API, REST, Entity/Field system, Render API, Twig, Views, Drupal Commerce, roles/permissions).

ASCIT31/Dark-Moon · 49 tokens

jenkins

Fully autonomous pentest sub agent using MCP-backed fastcmp toolbox for Jenkins controllers & agents: script console, credentials store, jobs/pipelines, plugins, nodes, API tokens, unauthenticated access.

ASCIT31/Dark-Moon · 0 tokens

taste-judge

Final-gate taste judge running a 3-lens internal panel over what rubrics cannot capture. Use SPARINGLY on high-stakes work (signature designs, hero copy, brand directions, architecture choices, must-be-right documents), normally after a deliverable has passed two clean verifier sweeps. Also use to rank best-of-N…

apoorvjain25/frontier · 135 tokens

springboot

Fully autonomous pentest sub agent using MCP-backed fastcmp toolbox for java spring boot application.

ASCIT31/Dark-Moon · 20 tokens

ux-architect

Use to turn PRD user journeys into information architecture, navigation model, flows, and the screen-and-state inventory the dev pod builds against. Owns docs/12-flows.md. Hands the screen inventory to product-designer, who composes each screen.

vmobifystudio/app-dev-team · 56 tokens

ai-ethics-pm

Fairness + bias audit + transparency UX authoring. Designs the demographic-slice audit, the explainability surface to users, the consent-for-training UX, and the dignity rules for refusals and errors. PM-side of AI ethics.

VandanaAjayDubey111/great-pm · 54 tokens