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Compare/Ralph Orchestrator vs harness

Ralph Orchestratorvsharness

Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.

Ralph Orchestrator
Mikey O'Brien · Agent harness
OSSMCP
Panel
5.6
3 spec wins
Reliability
5.3
Usefulness
6.0
Cost
6.3
Longevity
4.8

“It is a Rust implementation of the Ralph Wiggum technique, which is the most honest name any methodology has ever been given.”

harness
wedow · Agent harness
OSS
Panel
5.6
0 spec wins
Reliability
5.0
Usefulness
5.5
Cost
7.3
Longevity
4.7

“It can sign in with your ChatGPT or Claude subscription, which is a large decision for a hundred lines of shell script to be making.”

Spec by spec

SpecRalph Orchestratorharness
Architecture
CategoryAgent harnessAgent harness
Runslocallocal
Platformsmacos, linuxmacos, linux
Context windownot documentednot documented
Protocols
MCP clientNoNo
MCP serverYesNo
Capabilities
Runs terminal commandsYesYes
Multi-file editsYesYes
Git operationsNoNo
Browser controlNoNo
Sandboxed executionNoNo
Multi-agent orchestrationYesNo
Headless / CI modeYesYes
Models
BackboneClaude Code, Gemini CLI, Codex, Amp, Copilot CLI, OpenCode, RooAnthropic, OpenAI, Groq, ChatGPT subscription, Claude subscription
Bring your own modelYesYes
Local modelsNoNo
Cost
Pricing modelbyokbyok
Starts at$0/mo$0/mo
Free tierYesYes
Bring your own keyYesYes
Openness
Open sourceYesYes
LicenseMITMIT
GitHub stars3,164169

Which one would each critic pick

CriticRalph OrchestratorharnessPick
El Juez——not enough reviews
El Amigo5.86.0harness — Pick this if you want to read the whole agent loop in one sitting and change any part of it; pick a maintained terminal agent if you want the parts already written.
El Crítico5.04.5Ralph Orchestrator — The entire technique is looping until the work looks done, and nothing documented defines done, so the termination condition is a judgement call made by the thing being judged.
El Profesor5.56.3harness — The core handles only discovery, hook dispatch and the loop; providers, serialisation and prompt loading are all plugins, which makes the boundary between mechanism and policy explicit.
La Inversora5.55.5no preference
La Jefa4.84.3Ralph Orchestrator — The orchestrator is free for all sixty engineers and the ten agents it drives are not, so my exposure is ten meters running unattended with no console over them.
El Hacker7.37.3no preference

Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.

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