chore: cleanup dead code and update CLI docs

- Remove cmdThreadRunning dead code (CLI uses --status running now)
- Remove step read from README (command not registered)
- Update cli-reference.ts to reflect new four-layer commands

Refs #463

packages/cli-workflow/README.md

@@ -16,7 +16,7 @@ workflow → thread → step → turn
 - **Workflow** (layer 1): YAML template with roles and routing graph
 - **Thread** (layer 2): Single workflow execution instance
 - **Step** (layer 3): One moderator→agent→extract cycle
-- **Turn** (layer 4): Agent-internal interactions (use `step read` or CAS to inspect)
+- **Turn** (layer 4): Agent-internal interactions (use `step show` or CAS to inspect)
 
 This package has no library `src/index.ts` — it is consumed as a CLI binary only.
 
@@ -72,7 +72,6 @@ uwf thread stop 01ARZ3NDEKTSV4RRFFQ69G5FAV
 |---------|-------------|
 | `uwf step list <thread-id>` | List all steps in a thread chronologically |
 | `uwf step show <step-hash>` | Show step metadata and frontmatter |
-| `uwf step read <step-hash> [--before N]` | Read step output as markdown |
 | `uwf step fork <step-hash>` | Fork a thread from a specific step |
 
 Examples:
@@ -80,7 +79,6 @@ Examples:
 ```bash
 uwf step list 01ARZ3NDEKTSV4RRFFQ69G5FAV
 uwf step show 32GCDE899RRQ3
-uwf step read 32GCDE899RRQ3 --before 3
 uwf step fork 32GCDE899RRQ3
 ```
 

packages/cli-workflow/src/commands/thread.ts

@@ -9,7 +9,6 @@ import type {
   AgentConfig,
   CasRef,
   ModeratorContext,
-  RunningThreadsOutput,
   StartNodePayload,
   StartOutput,
   StepContext,
@@ -23,12 +22,7 @@ import type {
 import { createProcessLogger, generateUlid, type ProcessLogger } from "@uncaged/workflow-util";
 import { config as loadDotenv } from "dotenv";
 import { parse, stringify } from "yaml";
-import {
+import { createMarker, deleteMarker, isThreadRunning } from "../background/index.js";
-  createMarker,
-  deleteMarker,
-  isThreadRunning,
-  listRunningThreads,
-} from "../background/index.js";
 import {
   appendThreadHistory,
   createUwfStore,
@@ -1016,8 +1010,3 @@ export async function cmdThreadCancel(
 
   return { thread: threadId, cancelled: true };
 }
-
-export async function cmdThreadRunning(storageRoot: string): Promise<RunningThreadsOutput> {
-  const threads = await listRunningThreads(storageRoot);
-  return { threads };
-}

packages/workflow-util/src/cli-reference.ts

@@ -15,7 +15,7 @@ uwf setup --provider <name> --base-url <url> \\
 ## Workflow Commands
 
 \`\`\`
-uwf workflow put <file>           # register a workflow from YAML file
+uwf workflow add <file>           # register a workflow from YAML file
 uwf workflow show <id>            # show workflow by name or CAS hash
 uwf workflow list                 # list all registered workflows
 \`\`\`
@@ -24,20 +24,27 @@ uwf workflow list                 # list all registered workflows
 
 \`\`\`
 uwf thread start <workflow> -p <prompt>           # create a thread (no execution)
-uwf thread step <thread-id>                       # execute one moderator→agent→extract cycle
+uwf thread exec <thread-id>                       # execute one moderator→agent→extract cycle
                [--agent <cmd>]                    # override agent command
                [-c, --count <number>]             # run multiple steps (default: 1)
+               [--background]                     # run in background
 uwf thread show <thread-id>                       # show thread head pointer
-uwf thread list                                   # list active threads
+uwf thread list                                   # list threads
-               [--all]                            # include archived threads
+               [--status <status>]                # filter: idle, running, or completed
-uwf thread kill <thread-id>                       # terminate and archive a thread
-uwf thread steps <thread-id>                      # list all steps in a thread
 uwf thread read <thread-id>                       # render thread context as markdown
                [--quota <chars>]                  # max output characters (default 32000)
                [--before <step-hash>]             # load steps before this hash (exclusive)
                [--start]                          # include start step in output
-uwf thread fork <step-hash>                       # fork a thread from a specific step
+uwf thread stop <thread-id>                       # stop background execution (keep thread active)
-uwf thread step-details <step-hash>               # dump full detail node of a step as YAML
+uwf thread cancel <thread-id>                     # cancel thread (stop + move to history)
+\`\`\`
+
+## Step Commands
+
+\`\`\`
+uwf step list <thread-id>        # list all steps in a thread
+uwf step show <step-hash>        # show details of a specific step
+uwf step fork <step-hash>        # fork a thread from a specific step
 \`\`\`
 
 ## CAS Commands
@@ -78,10 +85,9 @@ uwf -V, --version                 # print version
 ## Key Concepts
 
 - **Workflow**: YAML definition with roles, conditions, and a routing graph; stored as a CAS node identified by its XXH64 hash.
-- **Thread**: A single workflow execution (ULID). State is an immutable CAS chain; active threads are indexed in \`threads.yaml\`.
+- **Thread**: A running instance of a workflow; points to a chain of CAS step nodes.
-- **Step**: One moderator→agent→extract cycle. Run \`uwf thread step\` repeatedly until \`$END\`.
+- **Step**: One moderator→agent→extract cycle; stored as a CAS node with output + detail refs.
-- **CAS**: Content-Addressed Storage — all nodes are immutable and identified by hash.
+- **Turn**: Agent-internal interaction (within a single step); stored per-turn in the detail node.
-- **Role**: Named actor with goal, capabilities, procedure, output, and frontmatter schema; the moderator routes between roles.
+- **CAS**: Content-addressable store; every artifact (workflows, steps, details, turns) is hashed.
-- **Edge Prompt**: Required instruction on each graph edge — the moderator's dispatch message to the agent.
 `;
 }