convert-task-to-subtask

convert-task-to-subtask is a command for Claude Code from vibehat/claude-task-manager. It costs 0 tokens per session (398 once invoked), scanned A, a copy of convert-task-to-subtask, MIT.

A command that changes an existing standalone task into a smaller task nested under another task. A subtask is a smaller piece of work that belongs to a larger task.

In plain words
What is it for?
Use it to move a task under a parent, organize related work, and preserve its history and links to other tasks.
Why use it?
It keeps the project plan accurate when work that was separate should instead be tracked as part of a parent task, while updating affected references and dependencies.

Command for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/vibehat/claude-task-manager/convert-task-to-subtask
Clone the repo
git clone --depth 1 https://github.com/vibehat/claude-task-manager

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for convert-task-to-subtask

README.md
[![agentmods](https://agentmods.dev/badge/commands/vibehat/claude-task-manager/convert-task-to-subtask.svg)](https://agentmods.dev/commands/vibehat/claude-task-manager/convert-task-to-subtask)
Your own site
<a href="https://agentmods.dev/commands/vibehat/claude-task-manager/convert-task-to-subtask"><img src="https://agentmods.dev/badge/commands/vibehat/claude-task-manager/convert-task-to-subtask.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 398 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00398
Opus 5 $0.00000 $0.00199
Sonnet 5 $0.00000 $0.00080
Haiku 4.5 $0.00000 $0.00040

Measured 4d ago against content hash b5ea1145f83b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

convert-task-to-subtask scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to convert-task-to-subtask — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/commands/tm/add-subtask/convert-task-to-subtask.md · 73 lines

What it actually says

Convert an existing task into a subtask.

Arguments: $ARGUMENTS

Parse parent ID and task ID to convert.

Task Conversion

Converts an existing standalone task into a subtask of another task.

Argument Parsing

  • "move task 8 under 5"
  • "make 8 a subtask of 5"
  • "nest 8 in 5"
  • "5 8" → make task 8 a subtask of task 5

Execution

task-master add-subtask --parent=<parent-id> --task-id=<task-to-convert>

Pre-Conversion Checks

  1. Validation

    • Both tasks exist and are valid
    • No circular parent relationships
    • Task isn't already a subtask
    • Logical hierarchy makes sense
  2. Impact Analysis

    • Dependencies that will be affected
    • Tasks that depend on converting task
    • Priority alignment needed
    • Status compatibility

Conversion Process

  1. Change task ID from "8" to "5.1" (next available)
  2. Update all dependency references
  3. Inherit parent's context where appropriate
  4. Adjust priorities if needed
  5. Update time estimates

Smart Features

  • Preserve task history
  • Maintain dependencies
  • Update all references
  • Create conversion log

Example

/project:tm/add-subtask/from-task 5 8
→ Converting: Task #8 becomes subtask #5.1
→ Updated: 3 dependency references
→ Parent task #5 now has 1 subtask
→ Note: Subtask inherits parent's priority

Before: #8 "Implement validation" (standalone)
After:  #5.1 "Implement validation" (subtask of #5)

Post-Conversion

  • Show new task hierarchy
  • List updated dependencies
  • Verify project integrity
  • Suggest related conversions
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 73 lines · 0 tokens per session scan A b5ea1145f83b

Subscribe to this mod's changes

convert-task-to-subtask is a command published in the GitHub repository vibehat/claude-task-manager (21 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 398 tokens. A static security scan graded it A with 0 findings. It is 100% identical to convert-task-to-subtask, differing in 2 lines, and is treated as a copy.