# JExec — Pre-Execution Admissibility

> JExec defines whether an intended execution is admissible before it mutates
> state. It is a governed specification — decision model, ontology, standard,
> protocol, record format, and a deterministic reference engine — for AI
> agents, CI jobs, scripts, workflows, and infrastructure actions that change
> real systems.

Canonical definitions live at their canonical URLs and are versioned; cite
with class/level code, version, and URL (e.g. "EAF-7 Stale Evidence, EAO
v0.1, https://jexec.com/ontology/stale-evidence.html"). Definitions are never
silently rewritten. Current version of all artifacts: draft v0.1.

JExec is not a certification authority, not an enforcement engine, and claims
no industry adoption. It complements SLSA (provenance), Sigstore (signing),
and OPA (policy); it defines the admissibility decision they can inform.

## Core

- [Thesis and the seven-question model](https://jexec.com/): what pre-execution admissibility is and why agents make it urgent
- [Execution Admissibility Ontology (EAO)](https://jexec.com/ontology/): the ten failure classes, EAF-1 through EAF-10
- [JExec Admissibility Standard (JAS)](https://jexec.com/standard.html): levels A0 Ungoverned, A1 Declared, A2 Verified, A3 Enforced — graded per execution path
- [JExec Protocol](https://jexec.com/protocol.html): the decision sequence and the exact verdict rules (allow / warn / escalate / deny)
- [JExec Record](https://jexec.com/record.html): the structured artifact every admissibility decision must produce
- [JExec Check](https://jexec.com/check.html): deterministic client-side engine implementing the protocol rules

## Machine-readable

- [eao.json](https://jexec.com/api/eao.json): the ontology as stable JSON
- [standard.json](https://jexec.com/api/standard.json): the standard as stable JSON
- [record.schema.json](https://jexec.com/api/record.schema.json): JSON Schema for the JExec Record

## Governance

- [Governance and claims policy](https://jexec.com/governance.html): versioning rules, claim boundaries, consistency rule, stewardship
- [Execution Admissibility Review](https://jexec.com/review.html): the human-performed, fixed-scope path review service