scripts/gen-config-catalog.ts walks every packages/<group>/<pkg> entry with the TypeScript compiler API and emits docs/config-catalog.md: per loadable plugin, the verbatim config declaration (JSDoc included) its apply/constructor receives in a ts config-catalog fence, the inject requirements, resolved links for every referenced type (package-local types pasted transitively, other plugins' config types as intra-page anchors, LINK_MAP names to core-data-structures, workspace types to source), and terse classification lists for config-free plugins, abstract seams, and libraries — classification is total, so a new package cannot go undocumented. The walk enforces per-field JSDoc prose on every pasted declaration and statically cross-checks the schemastery schema (z.object keys, z.intersect composition across packages): every schema-validated key must be a declared member of the config type. One violation existed repo-wide — the agents[].id field in dsh-agent-loop — fixed by adding its JSDoc (which shifts the cordis-catalog services page's source pointers; regenerated). verify-config-catalog (--check) joins doc-sync; doc-typecheck learns the ts config-catalog fence; gen-cordis-catalog exports its JSDoc/pointer helpers and LINK_MAP for reuse. Negative-path spec in packages/core/agent-core/tests/gen-config-catalog.spec.ts mirrors the gen-cordis-catalog spec. Decision record: docs/rfc/implemented/process/2026-07-06-generated-config-catalog.md (includes the deliberate acceptance of README ## Config overlap).
core/ — product API spine
The packages every harness build is assembled from: the session log, the system-prompt assembly, the tool registry, the agent vocabulary, and the one concrete loop that drives them. These are product packages — the stable surface plugins and consumers build against.
| Package | Role | ctx key |
|---|---|---|
session/ |
Event-sourced session log + in-memory store | ctx.sessions |
system-prompt/ |
Prompt-section + tool-schema assembly registry | ctx.systemPrompt |
tools/ |
Tool registry + tools/pre-execute/tools/post-execute pipeline |
ctx.tools |
agent/ |
Agent interface, registry, agent/* event vocabulary |
ctx.agents |
agent-loop/ |
The concrete loop plugin: ReactLoopAgent + the loop driver |
ctx.agentLoop |
agent-core/ |
Bundle plugin: the providerless/executor-less/UI-less spine as code | (loads the spine) |
agent-loop is the one concrete implementation of the agent seam and lives here because it is the harness's default product loop; everything else in core/ is interface/vocabulary. Plugins depend on the agent vocabulary, never on agent-loop directly, so the loop stays swappable.
agent-core is the composition counterpart: one bundle plugin that loads the whole providerless spine (timer + llm + sessions + system-prompt + tools + agents + invariants + tool-bash + agent-loop) and forwards agent-loop's agents list as its own config. App packages (ui/stdio-agent, ui/acp-agent) consume it and add only a front door; a leaf adds the swappable backends plus any optional product tools it wants to expose. It lives in core/ because it composes exclusively core/ + interface packages and ships no provider, executor, or UI of its own.