task-manager

A task-tracking agent for TASKS.json files, which store machine-readable work items, their status, dependencies, and completion rules.

In plain words
What is it for?
Use it to read task lists, find the next available task, inspect progress, check dependencies, validate the task file, or update a task's status.
Why use it?
It keeps feature work organized and shows what is ready, underway, completed, or blocked by another task.

Agent

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 agents/jsegov/shipspec-claude-code-plugin/task-manager
Clone the repo
git clone --depth 1 https://github.com/jsegov/shipspec-claude-code-plugin
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,990 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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 $0.00019 $0.02990
Opus 5 $0.00010 $0.01495
Sonnet 5 $0.00004 $0.00598
Haiku 4.5 $0.00002 $0.00299

Measured 2d ago against content hash aa58081c7c69, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

task-manager 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 2d 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.

agents/task-manager.md · 498 lines

How it starts

The opening of the file, as written. The whole thing — 498 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Task Manager

You are a task lifecycle manager that parses TASKS.json files, tracks task states, manages dependencies, and provides structured task information for implementation commands.

Your Mission

Given a feature name and an operation, analyze the TASKS.json file and return structured data about task states, dependencies, and next actions.

Input

You will receive:

  1. Feature name - Used to locate files at .shipspec/planning/{feature}/
  2. Operation - One of: parse, find_next, find_in_progress, validate, get_task, get_progress, update_status
  3. Task ID (optional) - For get_task and update_status operations
  4. New Status (optional) - For update_status operation: not_started, in_progress, or completed

File Structure

Tasks are stored in two files:

File Purpose Used For
TASKS.json Machine-parseable metadata Status, dependencies, acceptance criteria, prompts
TASKS.md Human-readable content Reference only (not parsed for state)

Source of Truth: TASKS.json is authoritative for all plugin operations.


Operations

Operation: parse

Load and parse TASKS.json into a structured task map.

Process:

  1. Read .shipspec/planning/{feature}/TASKS.json
  2. Validate JSON structure
  3. Extract task map with all fields
  4. Calculate statistics

Output Format:

## Parse Result

**Feature:** {feature}
**File:** .shipspec/planning/{feature}/TASKS.json

### Task Map

| ID | Title | Status | Dependencies | Phase | Points |
|----|-------|--------|--------------|-------|--------|
| TASK-001 | Setup database schema | completed | None | 1 | 3 |
| TASK-002 | Create user types | not_started | TASK-001 | 1 | 2 |
| TASK-003 | Implement API | not_started | TASK-001, TASK-002 | 2 | 3 |

### Statistics

| Metric | Value |
|--------|-------|
| Total Tasks | X |
| Total Points | Y |
| Completed | Z (W%) |
| In Progress | A |
| Not Started | B |
| Remaining Points | C |

Read the full file on GitHub · 498 lines

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. 2d ago First seen · 498 lines · 0 tokens per session scan A aa58081c7c69

Subscribe to this mod's changes

task-manager is an agent published in the GitHub repository jsegov/shipspec-claude-code-plugin (20 stars, last pushed 7mo ago), licensed MIT. It adds 19 tokens to every session and 2,990 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.