Create Task

Create Task

Creates high-quality, self-contained beads tasks by researching the codebase and assembling a structured description. Every task produced by this skill should give an implementing agent 90% of the context it needs inline.

Core principle: Invest effort at creation time to save 10x at implementation time.

Invocation

/​create-task "Fix off-by-one in window boundary check" --type=bug --priority=1
/​create-task --quick "Add capacity hint to Vec in compile_rules" --type=task --priority=3
/​create-task --dry-run "Refactor transform chain error handling" --type=task --priority=2
/​create-task --from-plan docs/​plans/​2026-02-23-feature-v3.md --step=3

Input formats:

• Positional string: "title text here"
• Flags: --title, --type, --priority, --labels, --files-hint, --parent
• Pasted paragraph with description

Flags:

---

Phase 0 --- Parse Intent

1. Extract from input:

   • Title (required): Clear imperative statement of what to do
   • Brief description: 1-2 sentence context (if provided)
   • Type: default task
   • Priority: default 2
   • Labels, files-hint, parent: if provided

2. If only a title with no brief description, ask the user:

   What's the 1-2 sentence context for this task? (What problem does it solve or what need does it address?)

3. If --from-plan is specified:

   • Read the plan file at the given path
   • Extract the step indicated by --step=N
   • Map plan fields: Problem Statement -> Context, Codebase Context -> Current State, step What -> Desired State, step Files -> Files to Modify, step Tests -> Testing Strategy, step Acceptance criteria -> Acceptance Criteria
   • Proceed to Phase 3 (skip research — plan already has codebase context)

---

Phase 1 --- Research (Explore Agent)

Skip when --quick is passed.

Spawn one subagent_type=general-purpose agent with the structured research prompt below. The agent performs up to ~30 tool calls across 6 steps.

Research Agent Prompt

You are a codebase researcher preparing context for a new task. Your job is to
gather specific, concrete information — NOT to implement anything.

## Task Being Created

**Title**: {TITLE}
**Brief**: {BRIEF_DESCRIPTION}
**Type**: {TYPE}
**Files hint**: {FILES_HINT or "none provided"}

## Research Steps (follow in order)

### Step 1: Find Affected Files
Use Grep and Glob to search for identifiers, types, functions, and concepts
mentioned in the title and brief. Search broadly:
- Exact names and keywords from the title
- Related concepts (synonyms, adjacent functionality)
- File paths mentioned in files-hint

List every file that is likely touched by this task.

### Step 2: Read Relevant Code
Read the specific functions, structs, and modules most relevant to this task.
- Maximum 8 files
- For each, extract the most relevant 5-20 line snippet with file:line header
- Note function signatures, struct definitions, trait impls

### Step 3: Trace Blast Radius
For the primary functions/​types affected:
- Grep for callers and call sites
- Note which modules depend on the affected code
- Identify downstream effects of changes

### Step 4: Find Reusable Patterns
Check for existing utilities that could be reused (per duplication prevention rules):
- Search `src/​stdx/` for related helpers
- Check sibling modules for similar patterns
- Note any existing abstractions that should be extended rather than duplicated

### Step 5: Search Related Beads Tasks
Run: `bd search "{keywords from title}" --limit 10`
For each result, classify the relationship:
- **blocks**: This new task cannot start until that task completes
- **blocked-by**: That task cannot start until this new task completes
- **relates-to**: Related but independent work
- **possible-duplicate**: May be the same task — FLAG THIS

### Step 6: Assess Scope
Based on your research, classify:
- **files_affected**: count of files that will be modified
- **modules_crossed**: count of distinct modules (top-level src/ directories)
- **touches_hot_path**: true/​false — does this touch engine/, scheduler/, or hot loop code?
- **has_unsafe**: true/​false — does affected code contain unsafe blocks?

## Output Format

Return a structured markdown document with these sections:

### Affected Files
| File | Relevance | What Changes |
|------|-----------|-------------|

### Code Snippets
For each relevant snippet:
```rust
// {file_path}:{start_line}-{end_line} — {brief description}
{actual code}

Blast Radius

Reusable Utilities

Related Tasks

Scope Assessment

• files_affected: {N}
• modules_crossed: {N}
• touches_hot_path: {true/​false}
• has_unsafe: {true/​false}

IMPORTANT: Be concrete. Every file path must be real. Every code snippet must be copied from the actual codebase, not invented. Every task ID must come from bd search output.

---

## Phase 2 --- Link Related Tasks

Process the Related Tasks output from the research agent:

1. **Possible duplicates**: Present to the user with details. Ask before proceeding.
   > Found a possible duplicate: {task_id} "{title}". Should I:
   > (a) Skip creating this task (it's already covered)
   > (b) Create anyway (different scope)
   > (c) Show me more details

   **Never silently create a duplicate.**

2. **Blocking relationships**: After the task is created (Phase 4), run:
   ```bash
   bd dep add <new-id> <blocker-id>

1. Relates-to: Include in the Related Work section of the description.

---

Phase 3 --- Compose Description

Assemble the full task description from the template below, filling sections with explore agent output (Phase 1) or available information (if --quick).

Complexity Scaling

Determine complexity from the scope assessment (Phase 1) or from the brief description (if --quick).

Mandatory Sections (ALL Tasks)

## Context
{Why this task exists. What problem or need it addresses. What symptom prompted it.}

## Current State
{What exists today with code snippets and file:line references.}

```rust
// src/​engine/​core.rs:142-158 — current boundary check
{actual code from research}

Desired State

{What should exist after. Specific behavior, interface, or structure.}

Implementation Guidance

Files to Modify

Patterns to Follow

{Existing patterns to mirror, with file:line refs. "None" if nothing specific.}

Utilities to Reuse

{From src/​stdx/ or siblings. "None found" if nothing applies.}

Blast Radius

{Callers, downstream effects, call sites needing updates.}

Code References

{3-5 inline snippets of the most relevant current code, each 5-20 lines. Each snippet has a file:line header.}

Related Work

Acceptance Criteria

• {Specific verifiable condition}
• All existing tests pass: cargo test
• Code compiles clean: cargo fmt --all && cargo check && cargo clippy --all-targets --all-features -- -D warnings

Pointers

{Where to look for the remaining ~10%: docs, related commits, design docs, files to read.}

### Conditional Sections

Include these based on scope assessment:

| Section | Include When | Content |
|---------|-------------|---------|
| **Design Notes** | modules_crossed >= 2 or multiple valid approaches | Trade-offs, alternatives considered, rationale for chosen approach |
| **Risk Analysis** | priority <= 1 or has_unsafe | What could go wrong, mitigation strategies, rollback plan |
| **Performance Considerations** | touches engine/, stdx/, scheduler/ | Hot path impact, allocation concerns, benchmark expectations |
| **Testing Strategy** | files_affected > 1 | What tests to add/​modify, test types (unit, property, integration), coverage goals |

Place conditional sections between "Code References" and "Related Work".

### Handling Missing Information

If the research agent didn't find enough for a section, include the section
with a `[NEEDS ENRICHMENT]` marker:

```markdown
### Blast Radius
[NEEDS ENRICHMENT] — Could not trace all callers. The implementing agent should
grep for usages of `FunctionName` before making changes.

---

Phase 4 --- Create Task

1. Write the composed description to a temp file:

   TMPFILE=$(mktemp /​tmp/​task-desc-XXXXXX.md)
   

   Write the description content to the temp file.

2. Create the beads task:

   bd create --title="{TITLE}" --type={TYPE} --priority={PRIORITY} --body-file="$TMPFILE"
   

   Add --labels={LABELS} if provided. Add --parent={PARENT} if provided.

3. Register dependencies (from Phase 2):

   bd dep add <new-id> <blocker-id>
   

4. Clean up temp file:

   rm "$TMPFILE"
   

5. Show the created task:

   bd show <new-id>
   

6. Present summary to user:

   Created task: {id}
   Title: {title}
   Type: {type} | Priority: P{priority}
   Sections: {count} mandatory + {count} conditional
   Related tasks linked: {count}
   Dependencies added: {count}
   

Dry Run Mode

If --dry-run is passed, skip step 2-4. Instead, print the full description to the user with a header:

--- DRY RUN: Task Description Preview ---
Title: {title}
Type: {type} | Priority: P{priority}

{full description}

--- End Preview (no task created) ---

---

Anti-Patterns

Related Skills

• /​plan-forge — creates implementation plans; use --create-tasks to auto-generate tasks from plan steps
• /​execute-review-findings — converts review findings to tasks (uses compatible template)
• /​review-dispatch — produces findings that may become tasks