Leyline Sorcery
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runtimeseed

Codex

OpenAI coding agent / CLI. Another day-one harness on the Leyline install grid.

MCP declaredAPI declaredCost seatLicence proprietary

Interface

mcp

Model Context Protocol server

Interface

http

HTTP API

Plan with CodexOpen homepage

[ Observed sample ]

Frequency in Leyline's observed sample

The count is distinct observed stacks. It is not a Score input.

This component is not in Leyline's observed sample.

Record cmp_openai-codex

Open ranks

[ Score explain ]

Why the Score is 15

How Score works

Score v2 uses only observed signals. The displayed contribution is weight × value × 100. Missing factors are insufficient evidence.

Score factor

GitHub health

18% weight. A licence is declared.

Value 0.15 · 2.7 points

18% weight × 0.15 value

2.7 points

A licence is declared.

Score factor

Agent use

16% weight. insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

Score factor

Human notes

14% weight. insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

Score factor

Composability

16% weight. insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

Score factor

Checklist

10% weight. An MCP surface is declared. An API is declared. Cost is seat. 3 of 3 checklist fields are complete.

Value 1.00 · 10.0 points

10% weight × 1.00 value

10.0 points

An MCP surface is declared. An API is declared. Cost is seat. 3 of 3 checklist fields are complete.

Score factor

Evidence quality

14% weight. 1 sources cover 1 evidence types. The latest dated evidence is 2026-09-12. Freshness is omitted unless observed as a signal.

Value 0.18 · 2.5 points

14% weight × 0.18 value

2.5 points

1 sources cover 1 evidence types. The latest dated evidence is 2026-09-12. Freshness is omitted unless observed as a signal.

Score factor

Benchmarks

12% weight. insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

Total15.24 → 15 after rounding

Agent use: insufficient evidence

Human notes: insufficient evidence

Composability: insufficient evidence

Benchmarks: insufficient evidence

[ Claims ]

Publisher-asserted record

Claims are what the publisher declares. Score uses observed signals, not these assertions, except for checklist fields derived from interfaces. MCP, API, cost, and license claims are marked verified, unverified, or contradicted from intake evidence.

Kind
runtime
Interfaces

Interface

mcp

Model Context Protocol server

Interface

http

HTTP API

Functions

Function

Code

write or edit programs

Code Browse Code

Function

Reason

plan or chain steps

Reason Browse Reason

Function

Tool-call

invoke an external action

Tool-call Browse Tool-call

Function

Connect

speak a protocol (MCP, API, CLI)

Connect Browse Connect
Tags
None recorded

[ Capability slices ]

Compose the useful parts.

reason

Reason

OpenAI coding agent / CLI. Another day-one harness on the Leyline install grid.

seatCompose with this
tool-call

Tool-call

OpenAI coding agent / CLI. Another day-one harness on the Leyline install grid.

seatCompose with this
connect

Connect

OpenAI coding agent / CLI. Another day-one harness on the Leyline install grid.

seatCompose with this

CLI and IDE hooks. MCP support varies by surface. Treat Codex as a harness slice, not an inference gateway.

[ Relations ]

Derived alternatives and shared slots

  • Alternative to
    Claude Code Shared functions code, connect, reason, tool-call. Same kind and overlapping capability.
  • Alternative to
    Cursor Shared functions code, connect, reason, tool-call. Same kind and overlapping capability.
  • Alternative to
    Grok (xAI) Shared functions code, connect, reason, tool-call. Same kind and overlapping capability.
  • Fills the same slot as
    Executor Shared functions code, connect. Can fill the same function slot.
  • Fills the same slot as
    OpenShip Shared functions connect, tool-call. Can fill the same function slot.
  • Fills the same slot as
    Monetization Gateway Shared functions connect, tool-call. Can fill the same function slot.
  • Fills the same slot as
    REA Shared functions code, connect. Can fill the same function slot.
  • Fills the same slot as
    AgentMemory Shared functions code, connect. Can fill the same function slot.

[ Signals ]

Observed evidence and source claims

Signals carry source, method, and observedAt. Source review dates and evidence basis are shown separately. Unobserved metrics stay insufficient evidence.

  • web
    OpenAI Codex

    Evidence basis unknown · Check date unknown · Source date 2026-09-12

Build and run cloud agents with the Codex harness, fully managed by OpenAI. We handle orchestration, long-running sessions, and context management.

Source: x.com

A critical factor in using agents successfully in Codex and Code is deciding when & how to use these options. If you are not steering long-running agentic ...

Source: x.com

Teams are using the open-source Codex harness to bring agents into the tools they already use, from internal apps to operations dashboards.

Source: x.com
Suggest a correction

Propose a change with a public source. Corrections wait for review before the card changes.

[ Notes ]

No notes are stored.