Coding agent · CLI / RLM Harness
Prime Agent
Prime Agent is a CLI / RLM Harness in the 2026 agents.dancingteeth catalog. Long-running coding/research loops where you want an open MIT RLM harness — persistent IPython, recursive subagents, and a Continual Harness that can `/refine` itself — with subscription or BYOK/self-hosted models.
Last updated
Verified
Best for
Long-running coding/research loops where you want an open MIT RLM harness — persistent IPython, recursive subagents, and a Continual Harness that can `/refine` itself — with subscription or BYOK/self-hosted models.
Skip if
You want a polished GUI IDE, refuse running model-generated Python with your user permissions, or need the simplest Claude Code–class daily CLI.
Who it fits
- Long-running coding/research loops where you want an open MIT RLM harness — persistent IPython, recursive subagents, and a Continual Harness that can `/refine` itself — with subscription or BYOK/self-hosted models.
- Terminal-first engineers who live in the shell and git
Pros
MIT open-source self-improving harness (Prime Intellect) built on Recursive Language Model + Continual Harness — persistent IPython as the model tool, `rlm(...)` subagents, `/refine` evidence-backed harness updates with rollback, daemon detach/reattach, goals/heartbeats/schedules, executable Python skills; subscriptions + multi-provider BYOK including self-hosted; TUI forked from pi.
Cons
Young public release (Aug 2026); IPython-centric trust model — model-generated Python/commands run with your user permissions (not a security sandbox); research/eval-shaped surface vs polished daily IDE agents; ARC-AGI-style claims are harness+model dependent.
Facts
- Locality:
- Hybrid (local + cloud)
- Surfaces:
- CLI
- Maturity:
- Experimental
- BYOK:
- Bring your own API key
- Open source:
- Source available
- Free tier:
- Free option available
- Verified:
- Aug 2026
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Frequently asked questions
What is Prime Agent?
- Prime Agent is a CLI / RLM Harness covered in the agents.dancingteeth 2026 catalog. MIT open-source self-improving harness (Prime Intellect) built on Recursive Language Model + Continual Harness — persistent IPython as the model tool, `rlm(.
Who is Prime Agent best for?
- Long-running coding/research loops where you want an open MIT RLM harness — persistent IPython, recursive subagents, and a Continual Harness that can `/refine` itself — with subscription or BYOK/self-hosted models.
When should I skip Prime Agent?
- You want a polished GUI IDE, refuse running model-generated Python with your user permissions, or need the simplest Claude Code–class daily CLI.
What are the main trade-offs of Prime Agent?
- Pros: MIT open-source self-improving harness (Prime Intellect) built on Recursive Language Model + Continual Harness — persistent IPython as the model tool, `rlm(. Cons: Young public release (Aug 2026); IPython-centric trust model — model-generated Python/commands run with your user permissions (not a security sandbox); research/eval-shaped surface vs polished daily IDE agents; ARC-AGI-style claims are harness+model dependent.
Does Prime Agent support AGENTS.md, SKILL.md, or MCP?
- This card lists AGENTS.md as Supported, SKILL.md as Supported, and rules/memory as Continual Harness supplemental prompts/memories/skills/subagent specs; session + IPython state; /refine snapshots.. Free options: 100% Free (Open-source, MIT); model cost via subscription login or BYOK / self-hosted..
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