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harnessforge is a local, open-source harness generator for AI coding agents. Run uvx harnessforge init to scan a repo and generate the startup files agents read before coding: AGENTS.md, CLAUDE.md, Cursor rules, memory, skills, tools, and validators. Claude Code, Cursor, Codex, Gemini CLI, Aider, and others stay the brain — harnessforge lays down the project context.
2026 Q1 is the year developers still build the agent harness.
2026 Q3 / 2027 is the year the LLM builds its own harness.
Today, every AI coding agent — Claude Code, Cursor, Codex, Gemini CLI, Aider, and others — depends on the same hidden layer: the files that brief the agent before it starts work.
AGENTS.md. CLAUDE.md. Cursor rules. SKILLS/. MCP server lists. Memory schemas. Test commands. Validators. “Do not touch this path.” “Require human approval before this.”
Different IDE, same boilerplate.
Different repo, same boilerplate.
Different agent, same boilerplate.
That is why I built harnessforge.
It is not another coding agent. The coding agent stays the brain.
harnessforge scans your repo locally and generates the project context, memory, skills, tools, and validation structure that coding agents read before work begins.
The goal is simple: make AI coding agents more consistent across real repos without manually writing the same harness files again and again.
Would love feedback from developers using Claude Code, Cursor, Codex, Gemini CLI, Aider, Continue, Windsurf, or other coding agents.
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About harnessforge on Product Hunt
“Generate harness files for AI coding agents”
harnessforge was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #16 on the daily leaderboard. harnessforge is a local, open-source harness generator for AI coding agents. Run uvx harnessforge init to scan a repo and generate the startup files agents read before coding: AGENTS.md, CLAUDE.md, Cursor rules, memory, skills, tools, and validators. Claude Code, Cursor, Codex, Gemini CLI, Aider, and others stay the brain — harnessforge lays down the project context.
harnessforge was featured in Open Source (68.5k followers), Developer Tools (514.1k followers), Artificial Intelligence (471.1k followers) and GitHub (41.3k followers) on Product Hunt. Together, these topics include over 208k products, making this a competitive space to launch in.
Who hunted harnessforge?
harnessforge was hunted by Programming with Jack Chew. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Programming with Jack Chew