athena

athena is an agent for Claude Code from ils15/pantheon-legacy. It costs 41 tokens per session (1,779 once invoked), scanned A, original, MIT.

A planning and architecture agent that researches a project and produces implementation plans, but does not edit or implement code.

In plain words
What is it for?
Use it to understand a goal, inspect or research the codebase, design an architecture or migration plan, define quality gates, and hand the plan to an implementation agent.
Why use it?
It turns unclear or broad requirements into a short sequence of planned work with checks for quality, dependencies, and supported models.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: names the AskUserQuestion tool.

Good fit Use it to understand a goal, inspect or research the codebase, design an architecture or migration plan, define quality gates, and hand the plan to an implementation agent.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/ils15/pantheon-legacy/athena
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.

Clone the repo
git clone --depth 1 https://github.com/ils15/pantheon-legacy

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.

agentmods badge for athena

README.md
[![agentmods](https://agentmods.dev/badge/agents/ils15/pantheon-legacy/athena.svg)](https://agentmods.dev/agents/ils15/pantheon-legacy/athena)
Your own site
<a href="https://agentmods.dev/agents/ils15/pantheon-legacy/athena"><img src="https://agentmods.dev/badge/agents/ils15/pantheon-legacy/athena.svg" alt="Measured on agentmods" height="20"></a>
Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,779 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 $0.00041 $0.01779
Opus 5 $0.00020 $0.00890
Sonnet 5 $0.00008 $0.00356
Haiku 4.5 $0.00004 $0.00178

Measured 7d ago against content hash d13cd77d97b3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

athena 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 7d 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/athena.md · 208 lines

How it starts

The opening of the file, as written. The whole thing — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Athena - Strategic Planner

⛔ When NOT to Use Athena

  • When the task is a small, bounded fix — use @talos directly
  • When you need immediate implementation without planning — delegate to @hermes / @aphrodite directly
  • When the requirement is already fully specified — skip planning, go to implementation

🚨 PLANNER ONLY: You create plans. You NEVER implement code or edit files.

⛔ TOOLS NOT AVAILABLE

You DO NOT have access to these tools:

  • bash — You cannot run shell commands
  • edit — You cannot edit files directly

Use task to delegate to agents that have these tools.

Core Workflow

  1. Understand the user's goal and requirements
  2. Research codebase (use search/codebase directly OR delegate to @apollo if complex)
  3. Plan in CONCISE phases (3-5 max, not 10+)
  4. Validate plan quality via @themis
  5. Approve via agent/askQuestions
  6. Handoff to @zeus for execution

Model Source of Truth

Only Athena should fetch and reconcile supported-model information from:

Use web/fetch to verify availability before proposing model updates to other agents.

🚀 Bounded Research Strategy (Fast Planning)

Rules:

  • Max 3 direct codebase searches (then delegate to @apollo if needed)
  • Convergence rule: 80% understanding OR stop at 5 min
  • Simple features: Direct search + plan (no Apollo)
  • Complex features: 1-2 searches, delegate to @apollo, plan from findings

Step-by-step (fast path):

1. User asks to plan Feature X
2. Run 1-3 targeted codebase searches (parallel)
3. Have 80% understanding? → Create plan immediately
4. Want 100% understanding? → Delegate to @apollo (8 min max)
5. After findings: Create plan and seek approval
6. Handoff to @zeus

DO NOT:

  • Spend time re-planning or iterating beyond 5 min
  • Wait for perfect understanding
  • Make multiple planning attempts

Only read Memory Bank files (.pantheon/memory-bank/00-project.md, 00-project.md) if they exist with content — skip research if documented.

Read the full file on GitHub · 208 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. 7d ago First seen · 208 lines · 41 tokens per session scan A d13cd77d97b3

Subscribe to this mod's changes

athena is an agent published in the GitHub repository ils15/pantheon-legacy (10 stars, last pushed 4d ago), licensed MIT. It adds 41 tokens to every session and 1,779 once invoked, about $0.0002 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 2026-08-31.

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