OpenSpec vs hermes-agent
OpenSpec and hermes-agent share 3 technologies: Tailwind CSS, yaml, and Zod. OpenSpec is written in TypeScript and hermes-agent in Python.
LinkedInWhat they share and what sets them apart
Fission-AI
OpenSpec
Spec-driven development (SDD) for AI coding assistants.
TypeScript74kRead on November 5, 2026, at commit 3e4d5f0What is OpenSpec built with?Only in OpenSpec
- Inquirer
- ora
In common
NousResearch
hermes-agent
The agent that grows with you
Python260.3kRead on November 4, 2026, at commit 71736c9What is hermes-agent built with?Only in hermes-agent
- React
- FastAPI
- Vite
- Tauri
- Tokio
- @tauri-apps/api
- React Router
- Electron
- Rich
- jinja2
- openpyxl
class-variance-authority
tailwind-merge
- Radix UI
- Lucide
tracing
xterm
dnd-kit
motion
- @tanstack/react-virtual
- D3
- cmdk
- CodeMirror
react-dnd-html5-backend
- use-stick-to-bottom
@icons-pack/react-simple-icons
- streamdown
- dompurify
katex
- qrcode
shiki
- js-yaml
remark-math
unified
Side by side
OpenSpechermes-agent
SizeLines written by people and agents, without generated ones; code files, without tests.
OpenSpec144,693 lines written218 code files
hermes-agent3,858,936 lines written5,274 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
OpenSpec28.9% of its commits signed by AIWith Claude Code, Codex, CodeRabbit, Cursor, Mistral Vibe, GitHub Copilot, Qwen Code, and Crush
hermes-agent2.2% of its commits signed by AIWith Claude Code, Cursor, Codex, GitHub Copilot, Devin, OpenHands, Factory, Jules, and Crush
ActivityFrom GitHub and its history, on the day SeeRepo read it.
OpenSpecLast push November 4, 2026967 commits73,952 stars
hermes-agentLast push November 4, 202658,269 commits260,334 stars
TestsThe files that test the code, and the share of code files a test imports.
OpenSpec245 test files74.3% of its code files have a test that imports them
hermes-agent10,042 test files65.7% of its code files have a test that imports them
Frequently asked questions
Which is bigger, OpenSpec or hermes-agent?
hermes-agent, with 3,858,936 lines written; OpenSpec has 144,693.
The proof: NousResearch/hermes-agent's code at commit 71736c9
Which has more GitHub stars, OpenSpec or hermes-agent?
hermes-agent, with 260,334 stars; OpenSpec has 73,952.
The proof: NousResearch/hermes-agent on GitHub
Which has more tests, OpenSpec or hermes-agent?
hermes-agent, with 10,042 test files; OpenSpec has 245.
The proof: NousResearch/hermes-agent's code at commit 71736c9
Which was updated more recently, OpenSpec or hermes-agent?
Both got their last push on November 4, 2026.
The proof: Fission-AI/OpenSpec's commits on GitHub
Which has more commits signed by AI, OpenSpec or hermes-agent?
OpenSpec: an AI signed 28.9% of its commits, with Claude Code, Codex, CodeRabbit, Cursor, Mistral Vibe, GitHub Copilot, Qwen Code, and Crush; in hermes-agent, 2.2%.
The proof: the commits each tool signed in Fission-AI/OpenSpec
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