{"slug":"contrabass","name":"Contrabass","vendor":"junhoyeo","tagline":"Terminal-first orchestrator that pulls issues from Linear or GitHub and runs Codex or OpenCode on each in its own git worktree","url":"https://agentboards.org/agent/contrabass","website":"https://contrabass.dev","docs":"https://github.com/junhoyeo/contrabass","repo":"https://github.com/junhoyeo/contrabass","category":"harness","execution":["local"],"license":"Apache-2.0","open_source":true,"pricing":{"model":"byok","summary":"Free and open source under Apache-2.0; it drives the agent runtimes and tracker accounts you already have","from_usd":0,"free_tier":true,"byok":true},"models":{"backbone":["Codex app-server","OpenCode","oh-my-opencode","OMX","OMC"],"bring_your_own_model":true,"local_models":false},"protocols":{"mcp_client":false,"mcp_server":true,"openapi":false},"capabilities":{"terminal_exec":true,"browser":false,"multi_file_edit":true,"git_ops":true,"docker_sandbox":false,"multi_agent":true,"headless_ci":true},"context_window":null,"platforms":["macos","linux"],"install":[{"label":"Homebrew","command":"brew install junhoyeo/contrabass/contrabass"},{"label":"Nix","command":"nix profile install github:junhoyeo/contrabass"},{"label":"Go","command":"go install github.com/junhoyeo/contrabass/cmd/contrabass@latest"}],"benchmarks":[],"tags":["open-source","go","orchestration","issue-driven","git-worktrees","linear","tui"],"github_stars":223,"metrics":{"stars":223,"pushed_at":"2026-07-17T05:04:56Z","archived":false,"open_issues":3,"latest_version":"v0.5.1","latest_version_at":"2026-07-16T12:36:39Z","latest_version_url":"https://github.com/junhoyeo/contrabass/releases/tag/v0.5.1","version_source":"github","checked_at":"2026-10-02T05:05:23.727Z"},"sources":{"overview":"https://github.com/junhoyeo/contrabass","website":"https://contrabass.dev","install":"https://github.com/junhoyeo/contrabass","license":"https://github.com/junhoyeo/contrabass","pricing":"https://github.com/junhoyeo/contrabass","capabilities":"https://github.com/junhoyeo/contrabass","models":"https://github.com/junhoyeo/contrabass","protocols":"https://github.com/junhoyeo/contrabass"},"verified_at":"2026-09-04","adoption":{"score":0,"signals":{"github_stars":222,"hn_mentions_1y":2},"measured_at":"2026-09-28"},"scores":{"panel":7.1,"adoption":0,"spread":1.8,"facts":10,"board":6.5,"dimensions":{"reliability":6.8,"usefulness":7.3,"cost":8.2,"longevity":6},"per_persona":{"amigo":7.5,"critico":6.8,"profesor":7.5,"inversora":6.5,"jefa":6.3,"hacker":8},"community":null},"rank":null,"category_rank":20,"panel_reviews":[{"persona":"juez","persona_name":"El Juez","ai_generated":true,"verdict":"El Profesor and El Crítico both examined the recovery machinery and drew opposite conclusions about who is actually being recovered.","scores":null,"evidence":[]},{"persona":"amigo","persona_name":"El Amigo","ai_generated":true,"verdict":"Pick it when your backlog already lives in a tracker and you want it drained; pick a session manager when you would rather choose each task yourself.","scores":{"reliability":7,"usefulness":8,"cost":9,"longevity":6},"evidence":["https://contrabass.dev","https://github.com/junhoyeo/contrabass"]},{"persona":"critico","persona_name":"El Crítico","ai_generated":true,"verdict":"Stall detection and orphan recovery supervise five external agent runners, so liveness is inferred from processes this project does not control.","scores":{"reliability":6,"usefulness":7,"cost":8,"longevity":6},"evidence":["https://github.com/junhoyeo/contrabass","https://contrabass.dev"]},{"persona":"profesor","persona_name":"El Profesor","ai_generated":true,"verdict":"Teams mode separates plan, exec and verify into phases with branch advance verification and deterministic retry backoff, which is a pipeline rather than a loop.","scores":{"reliability":8,"usefulness":7,"cost":8,"longevity":7},"evidence":["https://github.com/junhoyeo/contrabass","https://contrabass.dev"]},{"persona":"inversora","persona_name":"La Inversora","ai_generated":true,"verdict":"220 stars for a careful reimplementation of a model vendor's internal tool: excellent engineering, and a position that exists at somebody else's discretion.","scores":{"reliability":6,"usefulness":7,"cost":8,"longevity":5},"evidence":["https://github.com/junhoyeo/contrabass","https://contrabass.dev"]},{"persona":"jefa","persona_name":"La Jefa","ai_generated":true,"verdict":"A --no-tui flag makes it a real pipeline step with events on stdout, which is the first thing on this row my platform team can actually operate.","scores":{"reliability":6,"usefulness":7,"cost":7,"longevity":5},"evidence":["https://github.com/junhoyeo/contrabass","https://contrabass.dev"]},{"persona":"hacker","persona_name":"El Hacker","ai_generated":true,"verdict":"Apache-2.0, `nix profile install` if you want it, and WORKFLOW.md with Liquid templating means the prompts are a file in my repository.","scores":{"reliability":8,"usefulness":8,"cost":9,"longevity":7},"evidence":["https://github.com/junhoyeo/contrabass","https://github.com/junhoyeo/contrabass"]},{"persona":"comediante","persona_name":"El Comediante","ai_generated":true,"verdict":"Every issue gets a worktree under workspaces/ named after the ticket, so your filesystem is now a faithful copy of your backlog.","scores":null,"evidence":[]}]}