| name | speckit-implement |
| description | Execute the implementation plan by processing and executing all tasks defined in tasks.md |
| compatibility | Requires spec-kit project structure with .specify/ directory |
| metadata | {"author":"github-spec-kit","source":"templates/commands/implement.md"} |
| disable-model-invocation | true |
User Input
$ARGUMENTS
You MUST consider the user input before proceeding (if not empty).
Pre-Execution Checks
Check for extension hooks (before implementation):
- Check if
.specify/extensions.yml exists in the project root.
- If it exists, read it and look for entries under the
hooks.before_implement key
- If the YAML cannot be parsed or is invalid, skip hook checking silently and continue normally
- Filter out hooks where
enabled is explicitly false. Treat hooks without an enabled field as enabled by default.
- For each remaining hook, do not attempt to interpret or evaluate hook
condition expressions:
- If the hook has no
condition field, or it is null/empty, treat the hook as executable
- If the hook defines a non-empty
condition, skip the hook and leave condition evaluation to the HookExecutor implementation
- For each executable hook, output the following based on its
optional flag:
- Optional hook (
optional: true):
## Extension Hooks
**Optional Pre-Hook**: {extension}
Command: `/{command}`
Description: {description}
Prompt: {prompt}
To execute: `/{command}`
- Mandatory hook (
optional: false):
## Extension Hooks
**Automatic Pre-Hook**: {extension}
Executing: `/{command}`
EXECUTE_COMMAND: {command}
Wait for the result of the hook command before proceeding to the Outline.
- If no hooks are registered or
.specify/extensions.yml does not exist, skip silently
Outline
-
Run .specify/scripts/bash/check-prerequisites.sh --json --require-tasks --include-tasks from repo root and parse FEATURE_DIR and AVAILABLE_DOCS list. All paths must be absolute. For single quotes in args like "I'm Groot", use escape syntax: e.g 'I'''m Groot' (or double-quote if possible: "I'm Groot").
-
Check checklists status (if FEATURE_DIR/checklists/ exists):
-
Scan all checklist files in the checklists/ directory
-
For each checklist, count:
- Total items: All lines matching
- [ ] or - [X] or - [x]
- Completed items: Lines matching
- [X] or - [x]
- Incomplete items: Lines matching
- [ ]
-
Create a status table:
| Checklist | Total | Completed | Incomplete | Status |
|-----------|-------|-----------|------------|--------|
| ux.md | 12 | 12 | 0 | ✓ PASS |
| test.md | 8 | 5 | 3 | ✗ FAIL |
| security.md | 6 | 6 | 0 | ✓ PASS |
-
Calculate overall status:
- PASS: All checklists have 0 incomplete items
- FAIL: One or more checklists have incomplete items
-
If any checklist is incomplete:
- Display the table with incomplete item counts
- STOP and ask: "Some checklists are incomplete. Do you want to proceed with implementation anyway? (yes/no)"
- Wait for user response before continuing
- If user says "no" or "wait" or "stop", halt execution
- If user says "yes" or "proceed" or "continue", proceed to step 3
-
If all checklists are complete:
- Display the table showing all checklists passed
- Automatically proceed to step 3
-
Load and analyze the implementation context:
- REQUIRED: Read tasks.md for the complete task list and execution plan
- REQUIRED: Read plan.md for tech stack, architecture, and file structure
- IF EXISTS: Read data-model.md for entities and relationships
- IF EXISTS: Read contracts/ for API specifications and test requirements
Note: This command assumes a complete task breakdown exists in tasks.md. If tasks are incomplete or missing, suggest running /speckit.tasks first to regenerate the task list.
- Check for extension hooks: After completion validation, check if
.specify/extensions.yml exists in the project root.
- If it exists, read it and look for entries under the
hooks.after_implement key
- If the YAML cannot be parsed or is invalid, skip hook checking silently and continue normally
- Filter out hooks where
enabled is explicitly false. Treat hooks without an enabled field as enabled by default.
- For each remaining hook, do not attempt to interpret or evaluate hook
condition expressions:
- If the hook has no
condition field, or it is null/empty, treat the hook as executable
- If the hook defines a non-empty
condition, skip the hook and leave condition evaluation to the HookExecutor implementation
- For each executable hook, output the following based on its
optional flag:
- Optional hook (
optional: true):
## Extension Hooks
**Optional Hook**: {extension}
Command: `/{command}`
Description: {description}
Prompt: {prompt}
To execute: `/{command}`
- Mandatory hook (
optional: false):
## Extension Hooks
**Automatic Hook**: {extension}
Executing: `/{command}`
EXECUTE_COMMAND: {command}
- If no hooks are registered or
.specify/extensions.yml does not exist, skip silently