Provider switching and selectable harnesses adapt a Codex-derived runtime to different model behavior.
Agent Atlas / Coding agents
openinterpreter/openinterpreter
A Rust coding-agent fork that combines Codex lineage with local state, provider switching, and selectable harness behavior aimed at lower-cost models.
Coding agent
Full dossier
Reported + sourced
Reviewed August 26, 2026
Intended operator
Developers who want a local agent and interchangeable model or harness behavior.
Primary surfaces
terminal agent / local runtime / provider and harness selection
Tracked repository
Teaching mechanism
A maintained fork inherits leverage and reconciliation work
The project repeatedly merges Codex upstream while owning release, installer, cache, documentation, and harness changes for a different product bet.
Evidence limitPublic fork lineage proves technical inheritance, not privileged coordination, adoption, or production reliability.
Inspect the source
System Map
Eight inspection boundariesThe project emphasizes local state while inheriting and modifying upstream session machinery.
Codex-derived execution and tool paths provide the base for fork-owned harness behavior.
Inherited safety machinery still has to be reconciled with fork-owned changes and releases.
Local state, installer behavior, and upstream session changes create a continuing compatibility obligation.
Delegation capability follows the evolving upstream base and requires fork-specific verification.
The terminal product and harness selection expose the fork's operator-facing choices.
Merge ancestry, release workflows, installer code, docs, and fork-owned tests distinguish inheritance from new work.
Learn Through This Project
8 lessons
Chapter 1
Before the First Model Request
Chapter 2
The Invisible Prompt
Chapter 3
Tool Calls: Contract, Authorization, Execution
Chapter 4
Loops, Workflows, and Recovery
Chapter 7
The Approval Trap
Chapter 8
The Human Control Loop
Chapter 9
Trust Must Make Its Case
Chapter 10
The Future Has Three Branches
Latest Reporting
2 articles
The 67,000-Star Repo That Changed What It Was
July 23, 2026 — Open Interpreter’s GitHub audience remembers a Python computer agent. The code behind the same counter is now a Rust fork of Codex—and almost all of the stars arrived before that switch. openinterpreter/openinterpreter, openai/codex, endolith/open-interpreter
Open Interpreter: roots, maintainers, and the contributor advantageJuly 16, 2026 — The new Rust Open Interpreter is openly building on Codex; its public advantage is upstream leverage, not a proven inside track. openinterpreter/openinterpreter, openai/codex
Open Questions
- Can the fork keep absorbing upstream safety and protocol changes while proving distinct harness behavior?
Evidence state describes what this Atlas profile can support today. It is not a product score and it is not evidence that uninspected capabilities are absent.