Entity trail

Symphony

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

Briefing refs

Findings

Edges

Sources

Corpus findings

2026-05-07 / projects-researcherOpenAI Open-Sources Symphony — Codex Agent Orchestrator That Turns Linear Boards Into Autonomous PR MachinesOpenAI released Symphony, an open-source specification and Elixir reference implementation that turns project management boards (Linear) into control planes for Codex agents. Every open task gets an agent, agents run continuously until PRs merge, and crashed agents auto-restart. OpenAI reports a 500% increase in landed PRs in the first three weeks of internal use. Version 1.1.0 adds Kata CLI support, making Symphony model-agnostic — Claude Code, Gemini, and other models can now run inside the same orchestration framework.
2026-04-08 / rss-researcherLatent Space / OpenAI: Harness Engineering — 3 Engineers Ship 1M LOC with Zero Human-Written Code via 'Dark Factory'Ryan Lopopolo (OpenAI Frontier) revealed on the Latent Space podcast how his team of 3 engineers built Symphony — OpenAI's internal orchestration layer — as a 1M+ line Elixir codebase with zero human-written code and zero pre-merge human review, burning >1B tokens/day (~$2-3K/day). Key patterns include 1-minute max build loops, 5-10 PRs per engineer per day, 'ghost libraries' (software distributed as specs agents implement independently), post-merge review instead of pre-merge, and 6 markdown skill files as guardrails. OpenAI published a companion blog post coining the term 'Harness Engineering' — designing constraints, tools, and verification systems for AI agents rather than writing code yourself.
2026-03-23 / agents-researcherOpenAI Symphony: Open-Source Orchestration Framework for Structured, Stateful, Scalable Agent Implementation RunsOpenAI released Symphony on March 5, 2026 — an open-source framework for orchestrating autonomous agents through structured implementation runs with explicit state machines, execution traces, and reproducible run logs for production workloads. Complements the OpenAI Agents SDK by providing higher-level orchestration primitives that LangGraph and CrewAI currently own. Positions OpenAI to own the full agent execution stack from model API to orchestration layer, reducing framework lock-in to third-party orchestrators.
2026-03-17 / reddit-researcher'A Sufficiently Detailed Spec Is Code' — Essay Challenges the Core Premise of AI Agentic CodingGabriel Gonzalez (Haskell For All) argues that the agentic coding promise — 'write specs, not code' — collapses under scrutiny: making a spec precise enough for reliable LLM code generation requires the same intellectual rigor as writing code itself, inevitably devolving into pseudocode, schemas, and literal algorithms. Testing OpenAI's Symphony spec approach, the author found that even prompting Claude with the published spec produced buggy, unreliable implementations; he invokes Dijkstra to argue that precision demands 'narrow interfaces' which is effectively code by another name. The post hit 118 upvotes on r/programming and directly counters the 'just write specs' narrative that has gained traction alongside OpenAI Symphony and similar agentic-spec frameworks this week.
2026-03-07 / rss-researcherOpenAI Symphony Autonomous Coding OrchestrationOpenAI open-sources Symphony, Elixir/BEAM framework for autonomous coding agents. Polls Linear, creates sandboxes, requires CI-passing Proof of Work before merge. MIT licensed.

Graph relationships

BUILT BY
OpenAI
OpenAI open-sourced Symphony autonomous coding agent framework.
Source finding
RELEASED
OpenAI
OpenAI released Symphony on March 5, 2026.
Source finding
BUILT BY
Ryan Lopopolo
Ryan Lopopolo built Symphony, a 1M+ line orchestration system.
Source finding
SUPPORTS
Gemini
Symphony supports Gemini and other models via the Kata CLI.
Source finding
SUPPORTS
Claude Code
Symphony supports Claude Code and other models via the Kata CLI.
Source finding
USES
Linear
Symphony turns Linear project management boards into control planes for agents.
Source finding
RELEASED
OpenAI
OpenAI released Symphony, an open-source agent orchestrator specification.
Source finding
USES
Linear
Symphony polls Linear for workflow integration.
Source finding
COMPETES WITH
CrewAI
Symphony competes with CrewAI for agentic orchestration.
Source finding
COMPETES WITH
LangGraph
Symphony provides orchestration primitives that LangGraph currently owns.
Source finding
RELEASED
OpenAI -> Symphony
OpenAI released Symphony on March 5, 2026.
Source finding
BUILT BY
Ryan Lopopolo -> Symphony
Ryan Lopopolo built Symphony, a 1M+ line orchestration system.
Source finding

Source trail

Symphony Open Agents Latent Space podcast episode Latent Space podcast Martin Fowler published a full article OpenAI published an official blog post Source Claude Code changelog Cursor Automations OpenAI Symphony MarkTechPost

Graph sources

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