Tianyi Cui
eda2983b00
Round-1 Codex review findings on the tool-schema catalog: (A) The shipped coding-agent / acp-agent configs load dsh-tool-subagent twice — as `subagent` (spawn backend) and `subagent_fork` (fork backend) — so the model sees a `subagent_fork` tool the catalog never mentioned, while the intro claimed to list "the exact name the model receives". The registered name is the plugin's load-time `toolName` config, not a package fact, so rather than bake an example-app config into a packages-scoped generator, add a per-package deployment `note`: the subagent entry now records the `subagent_fork` alias and points at the leaf configs. Intro and RFC scope reworded to state the unit is the package (at its default config), with aliases noted — no longer overclaiming. A test asserts the note names `subagent_fork`, covering the config-driven-name path. (B) collectToolCatalog only disposed the context on the success path; a throw from mount/schemas() after earlier plugins mounted would leak the fiber. Move `ctx.fiber.dispose()` into a `finally` per the repo's dispose-to-quiescence rule.
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/execute waterfall |
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.