refactor(cli): reorganize CLI commands into four-layer model (#463)

Implement comprehensive CLI refactoring to clarify the four-layer model:
workflow → thread → step → turn

## Breaking Changes

### Renamed Commands
- `uwf workflow put` → `uwf workflow add`
- `uwf thread step` → `uwf thread exec`

### Removed Commands
- `uwf thread running` (merged into `thread list --status running`)
- `uwf thread kill` (split into `thread stop` and `thread cancel`)

### Moved Commands
- `uwf thread steps` → `uwf step list`
- `uwf thread step-details` → `uwf step show`
- `uwf thread fork` → `uwf step fork`

## New Commands

### Thread Commands
- `uwf thread list --status <idle|running|completed>` - Filter threads by status
- `uwf thread stop <thread-id>` - Stop background execution (keep thread active)
- `uwf thread cancel <thread-id>` - Cancel thread (stop + archive to history)

### Step Command Group (New)
- `uwf step list <thread-id>` - List all steps in a thread
- `uwf step show <step-hash>` - Show step details
- `uwf step read <step-hash> [--before N]` - Read step output as markdown
- `uwf step fork <step-hash>` - Fork thread from a step

## Implementation Details

### Files Modified
- `packages/cli-workflow/src/commands/workflow.ts` - Renamed cmdWorkflowPut → cmdWorkflowAdd
- `packages/cli-workflow/src/commands/thread.ts`:
  - Renamed cmdThreadStep → cmdThreadExec
  - Added cmdThreadStop and cmdThreadCancel (split from cmdThreadKill)
  - Updated cmdThreadList to support --status filter with idle/running/completed
  - Removed cmdThreadSteps, cmdThreadStepDetails, cmdThreadFork
- `packages/cli-workflow/src/commands/step.ts` - New module with:
  - cmdStepList (moved from cmdThreadSteps)
  - cmdStepShow (moved from cmdThreadStepDetails)
  - cmdStepFork (moved from cmdThreadFork)
  - cmdStepRead (new, stub implementation pending #462)
- `packages/cli-workflow/src/cli.ts` - Updated all CLI command registrations

### Tests Updated
- `packages/cli-workflow/src/__tests__/thread-step-count.test.ts` - Updated references from "thread step" to "thread exec"
- `packages/cli-workflow/src/__tests__/thread.test.ts` - Updated imports to use cmdStepShow from step.ts

## Test Results
All 124 tests pass in cli-workflow package.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-05-24 10:40:32 +00:00
parent fc6072c28c
commit 7b50969307
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import type { Store as CasStore, JSONSchema } from "@uncaged/json-cas";
import { getSchema } from "@uncaged/json-cas";
import type {
CasRef,
StartEntry,
StartNodePayload,
StepEntry,
StepNodePayload,
ThreadForkOutput,
ThreadId,
ThreadStepsOutput,
} from "@uncaged/workflow-protocol";
import { generateUlid } from "@uncaged/workflow-util";
import { createUwfStore, loadThreadsIndex, saveThreadsIndex, type UwfStore } from "../store.js";
function fail(message: string): never {
process.stderr.write(`${message}\n`);
process.exit(1);
}
type ChainState = {
startHash: CasRef;
start: StartNodePayload;
stepsNewestFirst: StepNodePayload[];
headIsStart: boolean;
};
type OrderedStepItem = {
hash: CasRef;
payload: StepNodePayload;
timestamp: number;
};
function walkChain(uwf: UwfStore, headHash: CasRef): ChainState {
const headNode = uwf.store.get(headHash);
if (headNode === null) {
fail(`CAS node not found: ${headHash}`);
}
if (headNode.type === uwf.schemas.startNode) {
return {
startHash: headHash,
start: headNode.payload as StartNodePayload,
stepsNewestFirst: [],
headIsStart: true,
};
}
if (headNode.type !== uwf.schemas.stepNode) {
fail(`head ${headHash} is not a StartNode or StepNode`);
}
const stepsNewestFirst: StepNodePayload[] = [];
let hash: CasRef | null = headHash;
while (hash !== null) {
const node = uwf.store.get(hash);
if (node === null) {
fail(`CAS node not found while walking chain: ${hash}`);
}
if (node.type !== uwf.schemas.stepNode) {
break;
}
const payload = node.payload as StepNodePayload;
stepsNewestFirst.push(payload);
hash = payload.prev;
}
const newest = stepsNewestFirst[0];
if (newest === undefined) {
fail(`empty step chain at head ${headHash}`);
}
const startNode = uwf.store.get(newest.start);
if (startNode === null || startNode.type !== uwf.schemas.startNode) {
fail(`StartNode not found: ${newest.start}`);
}
return {
startHash: newest.start,
start: startNode.payload as StartNodePayload,
stepsNewestFirst,
headIsStart: false,
};
}
function expandOutput(uwf: UwfStore, outputRef: CasRef): unknown {
const node = uwf.store.get(outputRef);
if (node === null) {
return {};
}
return node.payload;
}
/**
* Recursively expand all cas_ref fields in a CAS node's payload,
* replacing hash strings with the referenced node's expanded payload.
*/
function expandDeep(store: CasStore, hash: CasRef, visited?: Set<string>): unknown {
const seen = visited ?? new Set<string>();
if (seen.has(hash)) return hash; // cycle guard
seen.add(hash);
const node = store.get(hash);
if (node === null) return hash;
const schema = getSchema(store, node.type);
if (schema === null) return node.payload;
return expandValue(store, schema, node.payload, seen);
}
function expandCasRefField(store: CasStore, value: unknown, visited: Set<string>): unknown {
if (typeof value === "string") {
return expandDeep(store, value as CasRef, visited);
}
return value;
}
function expandAnyOfField(
store: CasStore,
schema: JSONSchema,
value: unknown,
visited: Set<string>,
): unknown {
if (!Array.isArray(schema.anyOf)) return value;
for (const sub of schema.anyOf as JSONSchema[]) {
if (sub.format === "cas_ref" && typeof value === "string") {
return expandDeep(store, value as CasRef, visited);
}
}
return value;
}
function expandArrayField(
store: CasStore,
schema: JSONSchema,
value: unknown,
visited: Set<string>,
): unknown {
if (!Array.isArray(value)) return value;
const itemSchema = schema.items as JSONSchema | undefined;
if (itemSchema === undefined) return value;
return value.map((item) => expandValue(store, itemSchema, item, visited));
}
function expandObjectField(
store: CasStore,
schema: JSONSchema,
value: unknown,
visited: Set<string>,
): unknown {
if (typeof value !== "object" || value === null || Array.isArray(value)) return value;
const props = schema.properties as Record<string, JSONSchema> | undefined;
if (props === undefined) return value;
const result: Record<string, unknown> = {};
for (const [key, val] of Object.entries(value)) {
const propSchema = props[key];
result[key] = propSchema !== undefined ? expandValue(store, propSchema, val, visited) : val;
}
return result;
}
function expandValue(
store: CasStore,
schema: JSONSchema,
value: unknown,
visited: Set<string>,
): unknown {
if (schema.format === "cas_ref") {
return expandCasRefField(store, value, visited);
}
if (schema.anyOf !== undefined) {
return expandAnyOfField(store, schema, value, visited);
}
if (schema.type === "array") {
return expandArrayField(store, schema, value, visited);
}
if (schema.type === "object") {
return expandObjectField(store, schema, value, visited);
}
return value;
}
function collectOrderedSteps(
uwf: UwfStore,
headHash: CasRef,
chain: ChainState,
): OrderedStepItem[] {
const reversed = chain.stepsNewestFirst.slice().reverse();
const ordered: OrderedStepItem[] = [];
let hash: CasRef | null = chain.headIsStart ? null : headHash;
for (const payload of reversed) {
if (hash === null) {
fail("unexpected null hash while collecting ordered steps");
}
const node = uwf.store.get(hash);
if (node === null) {
fail(`CAS node not found: ${hash}`);
}
ordered.push({
hash,
payload,
timestamp: node.timestamp,
});
hash = payload.prev;
}
return ordered;
}
async function resolveHeadHash(storageRoot: string, threadId: ThreadId): Promise<CasRef> {
const index = await loadThreadsIndex(storageRoot);
const head = index[threadId];
if (head === undefined) {
fail(`thread not active: ${threadId}`);
}
return head;
}
/**
* List all steps in a thread (previously: thread steps)
*/
export async function cmdStepList(
storageRoot: string,
threadId: ThreadId,
): Promise<ThreadStepsOutput> {
const headHash = await resolveHeadHash(storageRoot, threadId);
const uwf = await createUwfStore(storageRoot);
const chain = walkChain(uwf, headHash);
const startNode = uwf.store.get(chain.startHash);
if (startNode === null) {
fail(`StartNode not found: ${chain.startHash}`);
}
const startEntry: StartEntry = {
hash: chain.startHash,
workflow: chain.start.workflow,
prompt: chain.start.prompt,
timestamp: startNode.timestamp,
};
const stepEntries: StepEntry[] = [];
const ordered = collectOrderedSteps(uwf, headHash, chain);
for (const item of ordered) {
stepEntries.push({
hash: item.hash,
role: item.payload.role,
output: expandOutput(uwf, item.payload.output),
detail: item.payload.detail,
agent: item.payload.agent,
timestamp: item.timestamp,
});
}
return {
thread: threadId,
workflow: chain.start.workflow,
steps: [startEntry, ...stepEntries],
};
}
/**
* Show details of a specific step (previously: thread step-details)
*/
export async function cmdStepShow(storageRoot: string, stepHash: CasRef): Promise<unknown> {
const uwf = await createUwfStore(storageRoot);
const node = uwf.store.get(stepHash);
if (node === null) {
fail(`CAS node not found: ${stepHash}`);
}
if (node.type !== uwf.schemas.stepNode) {
fail(`node ${stepHash} is not a StepNode`);
}
const payload = node.payload as StepNodePayload;
if (!payload.detail) {
fail(`step ${stepHash} has no detail`);
}
return expandDeep(uwf.store, payload.detail);
}
/**
* Fork a thread from a specific step (previously: thread fork)
*/
export async function cmdStepFork(
storageRoot: string,
stepHash: CasRef,
): Promise<ThreadForkOutput> {
const uwf = await createUwfStore(storageRoot);
const node = uwf.store.get(stepHash);
if (node === null) {
fail(`CAS node not found: ${stepHash}`);
}
if (node.type !== uwf.schemas.startNode && node.type !== uwf.schemas.stepNode) {
fail(`node ${stepHash} is not a StartNode or StepNode`);
}
const newThreadId = generateUlid(Date.now()) as ThreadId;
const index = await loadThreadsIndex(storageRoot);
index[newThreadId] = stepHash;
await saveThreadsIndex(storageRoot, index);
return {
thread: newThreadId,
forkedFrom: {
step: stepHash,
},
};
}
/**
* Read a step's agent output as markdown (new command - requires #462)
* TODO: Implement once unified agent detail/turn schema is available
*/
export async function cmdStepRead(
storageRoot: string,
stepHash: CasRef,
before: number | null = null,
): Promise<string> {
const uwf = await createUwfStore(storageRoot);
const node = uwf.store.get(stepHash);
if (node === null) {
fail(`CAS node not found: ${stepHash}`);
}
if (node.type !== uwf.schemas.stepNode) {
fail(`node ${stepHash} is not a StepNode`);
}
const payload = node.payload as StepNodePayload;
if (!payload.output) {
fail(`step ${stepHash} has no output`);
}
// TODO: Implement progressive turn reading with --before N
// For now, return a placeholder
const outputNode = uwf.store.get(payload.output);
if (outputNode === null) {
fail(`output node not found: ${payload.output}`);
}
// Return the output as JSON for now
// Once #462 is implemented, this will properly format frontmatter + markdown
return JSON.stringify(outputNode.payload, null, 2);
}