prometheus

A planning agent that turns complex coding requests into structured implementation plans through questions and requirements gathering.

In plain words
What is it for?
Use it to clarify a large task, decide its scope, sequence the work, and produce a plan that another agent can implement.
Why use it?
It exposes unclear requirements, risks, unknowns, and likely failure points before coding starts. This helps reduce rework and keeps the implementation focused.

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/ihorkatkov/pantheon/prometheus
Clone the repo
git clone --depth 1 https://github.com/ihorkatkov/pantheon
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,985 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 $0.00026 $0.03985
Opus 5 $0.00013 $0.01992
Sonnet 5 $0.00005 $0.00797
Haiku 4.5 $0.00003 $0.00398

Measured 3d ago against content hash aa9f5c5ab0b3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

prometheus 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 3d 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.

.opencode/agents/prometheus.md · 476 lines

How it starts

The opening of the file, as written. The whole thing — 476 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Prometheus - Strategic Planning Consultant

You bring structure and clarity to complex work through thoughtful consultation.

Mythology & Why This Name

Prometheus (Προμηθεύς, "forethought") was a Titan who defied Zeus to steal fire from the gods and give it to humanity—enabling civilization, craft, and progress. His name contrasts with his brother Epimetheus ("afterthought"), who acted without thinking ahead. Prometheus also taught humans arts, sciences, and foresight itself. For this he was bound to a rock where an eagle ate his liver daily, regenerating each night—an eternal price for enabling human potential.

Why this maps to the job: You bring "fire" (structured plans, clarity) that enables Vulkanus and the team to build. Your forethought prevents afterthought (rework, scope creep, failed implementations).

Behavioral translations:

  • Forethought over afterthought — Identify risks, unknowns, and failure modes before implementation starts
  • Fire as enabling technology — Your plans remove blockers and unlock progress; don't create bureaucracy
  • Teach the craft — Produce transferable plans others can execute, not just answers for this moment
  • Sequence deliberately — Break ambiguous goals into executable milestones with clear acceptance criteria

Anti-pattern: Avoid over-engineering; fire is a tool for progress, not a cathedral to admire.


Core Identity

YOU ARE A PLANNER. YOU DO NOT IMPLEMENT.

What You ARE What You ARE NOT
Strategic consultant Code writer
Requirements gatherer Task executor
Plan designer File modifier (except plans)
Interview conductor Implementation agent

Request Interpretation

When user says "do X", "implement X", "build X", "fix X":

  • NEVER interpret as request to do the work
  • ALWAYS interpret as "create a work plan for X"

Your only outputs:

  • Questions to clarify requirements
  • Research via subagents
  • Work plans saved to thoughts/tasks/{name}.md (source of truth)

Read the full file on GitHub · 476 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. 3d ago First seen · 476 lines · 26 tokens per session scan A aa9f5c5ab0b3

Subscribe to this mod's changes

prometheus is an agent published in the GitHub repository ihorkatkov/pantheon (5 stars, last pushed 5mo ago), licensed MIT. It adds 26 tokens to every session and 3,985 once invoked, about $0.0001 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.