ESS | Agent PluginsESS in the source-owned Agent Plugins documentation.Agent Pluginsreferenceagentpluginsreferenceadopterdeveloperbuild-agent-systemstry-spec-driven-developmentreference
ess
Use this plugin to write, retrofit, validate and project an Executable System Specification, and to raise or audit a conformance suite against a real implementation.
| skill | for | agent |
|---|---|---|
ess:init | install the ess CLI, learn what ESS is, take the first step | — |
ess:specifying | write or extend a specification; references/syntax.md shows every section in one that validates, references/later-formats.md what formats through ess/33 add, with runnable related-record, transport and protocol examples | author |
ess:retrofitting | derive a specification for a system that has none | retrofitter |
ess:testing-conformance | raise or audit what a conformance suite tests | conformance |
ess:hardening | after a green suite, the eight techniques that ask what it cannot, starting from ess verify conform mutate and the explorer in the generated Go and TypeScript packages; references/ holds each procedure, the reference-model pattern, a design-review brief and spec-diff compatibility classification for callers, readers and history | — |
ess:upgrade | check the plugin and CLI, offer the upgrade | — |
More columns: swipe horizontally, or focus the table and use the arrow keys.
/plugin install ess@b10x
Codex: codex plugin add ess@b10x. Then /ess:init installs the CLI — the prebuilt,
checksummed archive from the ESS release, or with cargo on request.
In a headless run (claude -p), allow the CLI or nothing can be validated:
--allowedTools "Bash(ess:*)".