compozy/cy-create-tasks

Create Tasks

Decompose requirements into robust, independently implementable task files with codebase-informed enrichment.

Task Sizing

Every task becomes one full agent run: a fresh context that re-reads the spec corpus, re-explores the codebase, and rebuilds its model of the system from zero before the first edit. That ramp-up is the expensive part of a run — many small tasks pay it over and over and discard the accumulated reasoning at every boundary, while a robust task keeps it working.

• Default to fewer, larger tasks. A task is a complete vertical slice — implementation, wiring, and its assigned tests — delivered end-to-end in one run.
• Split only at real boundaries:
  • Dependency: a contract (schema, interface, protocol) must exist before its consumers can build on it.
  • Parallelization: two slices touch disjoint files and can run as parallel waves via _tasks.md edges.
  • Domain: different toolchains or deliverables (backend vs frontend vs SDK vs docs).
• File count is never a split reason: a task spanning 20+ files is healthy when they form one coherent slice, and one agent run handles it comfortably.
• A typical feature lands at 3-7 robust tasks. A breakdown with 10+ tasks almost always contains slices that belong together — merge them before presenting.

Required Inputs

• Feature name identifying the .compozy/tasks/<name>/ directory.
• At minimum, _prd.md or _techspec.md in that directory.
• When present: _tests.md (test contract) and _user_stories.md (story catalog).

Workflow

1. Load type registry.

   • Read .compozy/config.toml.
   • If it contains [tasks].types, use that list as the allowed type values.
   • Otherwise use the built-in defaults: frontend, backend, docs, test, infra, refactor, chore, bugfix.

2. Load context.

   • Read _prd.md, _techspec.md, _user_stories.md, and _tests.md from .compozy/tasks/<name>/.
   • Read existing ADRs from .compozy/tasks/<name>/adrs/ to understand the decision context behind requirements and design choices.
   • If _techspec.md is missing:
     • Warn the user that tasks will be higher-level without TechSpec implementation guidance.
     • Derive tasks from PRD functional requirements and the _user_stories.md catalog instead of TechSpec implementation sections.
     • During enrichment, rely more heavily on codebase exploration to fill ## Implementation Details, ### Relevant Files, and ### Dependent Files.
     • Mark <requirements> with PRD-derived behavioral requirements instead of TechSpec-derived technical requirements.
     • Explicitly call out missing implementation detail gaps in the task body instead of inventing specifics.
   • If both _prd.md and _techspec.md are missing, stop and ask the user to create at least one first.
   • Spawn an Agent tool call to explore the codebase for files to create or modify, test patterns, and coding conventions.

3. Break down into tasks.

   • Apply the Task Sizing doctrine above: slice the TechSpec's Build Order into the smallest number of robust tasks the real boundaries allow.
   • Each task MUST be independently implementable when all dependencies declared in _tasks.md graph edges are met. No task may require undeclared work from another task. If two tasks share a tight coupling, merge them — or extract the shared piece into a dependency task only when a real boundary separates it.
   • No circular dependencies. If task A depends on task B, task B must NOT depend on task A (directly or transitively).
   • Each task must have: title, type, complexity, and dependency relationships in the graph plan.
   • Complexity rates implementation risk, not size — and is never a reason to split:
     • low: contained change on well-trodden patterns, low regression risk.
     • medium: new interfaces or integration points, moderate coordination.
     • high: new subsystem, concurrency, or a broad integration surface.
     • critical: cross-cutting change with high regression risk, requires coordination with other tasks.
   • When a task directly implements or is constrained by a specific ADR, include the ADR reference in the task's "Related ADRs" section under Implementation Details.
   • Tests live inside the task that implements the behavior they verify; never create tasks dedicated solely to testing.
   • Follow the structure defined in references/task-template.md and the metadata definitions in references/task-context-schema.md.

4. Assign the test contract.

   • Assign every UT-, IT-, and E2E- ID from _tests.md to exactly one task — the task that implements the behavior the case verifies. Integration and E2E cases go to the task that completes the flow they exercise.
   • Done when every ID in _tests.md appears in exactly one task's planned ## Tests section: no orphan IDs, no duplicates.
   • If _tests.md is missing: warn the user, then write concrete inline cases per task instead — each naming the exact input, condition, and expected result (e.g., "POST /job/done with unknown job ID returns 404"), never a vague "test the happy path".

5. Present the task breakdown for interactive approval.

   • Show every task with: title, type, complexity, a one-line scope summary, dependency chains, and assigned test-ID counts.
   • Wait for user feedback before proceeding; revise and present again until the user explicitly approves.

6. Generate task files.

   • Write _tasks.md as the canonical task graph manifest. It MUST start with this YAML frontmatter shape:

     ---
     schema_version: "compozy.tasks/v2"
     workflow: [feature-name]
     graph:
       nodes:
         - id: task_01
           file: task_01.md
       edges:
         - from: task_01
           to: task_02
     ---
     
     # [Feature Name] Task List
     

   • _tasks.md is the only place dependency relationships are stored. Each edge means from must finish before to can start.
   • Include every task in graph.nodes, using canonical sequential ids (task_01, task_02, ...) and matching files (task_01.md, task_02.md, ...).
   • Use edges: [] when there are no dependencies.
   • Write individual task files as task_01.md through task_N.md (the task_ prefix has no leading underscore).
   • Each file must start with YAML frontmatter containing only task-owned metadata: status, title, type, and complexity. Dependency information lives only in _tasks.md.
   • Task numbering must be sequential and consistent between _tasks.md and individual files.

7. Enrich each task file.

   • For each task file, check whether it already has ## Overview, ## Deliverables, and ## Tests sections. If all three exist, skip enrichment for that file.
   • Map the task to PRD requirements, user stories, and TechSpec guidance.
   • Spawn an Agent tool call to discover relevant files, dependent files, integration points, and project rules for this specific task.
   • Fill ALL template sections from references/task-template.md. Every task file MUST contain each of the following sections — omitting any is a failure:
     • ## Overview: what slice of the system the task delivers and why, in 2-3 sentences.
     • <critical> block: the standard critical reminders block from the template.
     • <requirements> block: specific, numbered technical requirements using MUST/SHOULD language.
     • ## Subtasks: checklist items describing WHAT, not HOW — one per coherent unit of work, typically 5-12 for a robust task.
     • ## Implementation Details: file paths to create or modify, integration points. Reference TechSpec for patterns.
     • ### Relevant Files: discovered paths from codebase exploration with brief reasons.
     • ### Dependent Files: files that will be affected by this task with brief reasons.
     • ### Related ADRs: links to relevant ADRs if any exist, or omit the subsection if none apply.
     • ## Deliverables: concrete outputs, including every assigned test case implemented and passing.
     • ## Tests: the assigned test-case IDs grouped by level with the behavior they cover; full case definitions stay in _tests.md.
     • ## Success Criteria: measurable outcomes including "Every assigned test case implemented and passing".
   • Reassess complexity based on exploration findings and update if changed.
   • Update the task file in place with enriched content.
   • If enrichment fails for one task, continue to the next and report all failures at the end.

8. Validate.

   • Run compozy tasks validate --name <feature>. If it exits non-zero, fix the reported issues and re-run; do not finish until it exits 0.
   • Audit the test assignment: every ID in _tests.md appears in exactly one task file's ## Tests section. Fix any orphan or duplicate and re-audit.

Error Handling

• If both _prd.md and _techspec.md are missing, stop and ask the user to create at least one first.
• If the user rejects the task breakdown, incorporate all feedback before presenting again.
• If codebase exploration reveals task boundaries that do not match the TechSpec, note the discrepancy and ask the user how to proceed.
• If a test case in _tests.md fits no task, the breakdown is missing a slice — fix the breakdown rather than dropping the case.
• If the target directory does not exist, create it.
• If a task file already exists and is fully enriched, skip it and move to the next.