Name: hephaestus-agent
Author: willhama

Imported from willhama/md-file-study (corpus_full/code-yeongyu__oh-my-openagent/files/packages/omo-opencode/src/agents/hephaestus/AGENTS.md). Install upstream with npx skills add willhama/md-file-study --skill hephaestus. Copyright stays with the author.

src/agents/hephaestus/ -- Autonomous Deep Worker

Generated: 2026-05-15

OVERVIEW

6 files. Hephaestus agent -- autonomous deep worker with GPT-5.4, GPT-5.5, GPT-5.6, and base-prompt variants. Goal-oriented: give it objectives, not step-by-step instructions. "The Legitimate Craftsman."

FILES

File	Purpose
`agent.ts`	`createHephaestusAgent()` factory, model-variant routing
`gpt.ts`	Base GPT prompt: discipline rules, delegation, verification
`gpt-5-6.ts`	GPT-5.6-native outcome-first prompt
`gpt-5-5.ts`	GPT-5.5-native prompt with task discipline sections
`gpt-5-4.ts`	GPT-5.4-native prompt with XML-tagged blocks, entropy-reduced
`index.ts`	Barrel exports

KEY BEHAVIORS

Mode: primary (respects UI model selection)
Requires OpenAI-compatible provider (no fallback chain)
NEVER trusts subagent self-reports -- always verifies
NEVER uses background_cancel(all=true)
Delegates exploration to background agents, never sequential
Uses run_in_background=true for explore/librarian

MODEL VARIANTS

Model	Prompt Source	Optimizations
gpt-5.6	`gpt-5-6.ts`	Outcome-first, manual-QA-focused prompt
gpt-5.5	`gpt-5-5.ts`	Task discipline prompt
gpt-5.4	`gpt-5-4.ts`	XML-tagged blocks, 8 sections
Other supported GPT	`gpt.ts`	Base prompt

Install hephaestus-agent and it becomes one more candidate the router can pick - when it fits.

A listing is a routing target with a manifest: what it does, which domains it covers, what it costs and who publishes it. Once installed it sits beside your own models and tools, is scored like any other candidate for each request, and shows up in the trace when it wins. Ratings come from workspaces that installed it, one per account.

{ "ocm": "1", "id": "willhama-md-file-study-hephaestus", "kind": "skill", "name": "hephaestus-agent", "description": "Developer reference for the Hephaestus autonomous deep worker agent — model variants, key behaviors, and delegation patterns.", "publisher": "willhama", "version": "1.0.0", "capabilities": { "domains": [ "general" ], "tags": [ "skill-md", "github-agents" ], "languages": [ "en" ] }, "quality_prior": 0.6, "examples": [ "Developer reference for the Hephaestus autonomous deep worker agent — model variants, key behaviors, and delegation patterns." ], "primary": false, "metadata": { "source": { "provider": "github-agents", "repository": "https://github.com/willhama/md-file-study", "path": "corpus_full/code-yeongyu__oh-my-openagent/files/packages/omo-opencode/src/agents/hephaestus/AGENTS.md", "ref": "c19de1e5213e9860055ac2385c28916a272efb46", "url": "https://github.com/willhama/md-file-study/blob/c19de1e5213e9860055ac2385c28916a272efb46/corpus_full/code-yeongyu__oh-my-openagent/files/packages/omo-opencode/src/agents/hephaestus/AGENTS.md", "key": "willhama/md-file-study/corpus_full/code-yeongyu__oh-my-openagent/files/packages/omo-opencode/src/agents/hephaestus/AGENTS.md" } }, "instructions": "# src/agents/hephaestus/ -- Autonomous Deep Worker\n\n**Generated:** 2026-05-15\n\n## OVERVIEW\n\n6 files. Hephaestus agent -- autonomous deep worker with GPT-5.4, GPT-5.5, GPT-5.6, and base-prompt variants. Goal-oriented: give it objectives, not step-by-step instructions. \"The Legitimate Craftsman.\"\n\n## FILES\n\n| File | Purpose |\n|------|---------|\n| `agent.ts` | `createHephaestusAgent()` factory, model-variant routing |\n| `gpt.ts` | Base GPT prompt: discipline rules, delegation, verification |\n| `gpt-5-6.ts` | GPT-5.6-native outcome-first prompt |\n| `gpt-5-5.ts` | GPT-5.5-native prompt with task di", "cost": { "context_tokens": 351 } }

hephaestus-agent

About

src/agents/hephaestus/ -- Autonomous Deep Worker

OVERVIEW

FILES

KEY BEHAVIORS

MODEL VARIANTS

Install hephaestus-agent and it becomes one more candidate the router can pick - when it fits.

Use it

Manifest

Reviews