task-executor

A development agent that implements a defined delivery batch or assigned work lane from a phased plan. A delivery batch groups related tasks into one unit for testing and review.

In plain words
What is it for?
Use it to complete planned coding tasks, run the required tests and builds, and commit the resulting batch or lane while preparing it for integration and review.
Why use it?
It gives an implementation task a clear scope, dependencies, acceptance checks, and validation requirements so the work can be delivered coherently.

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/zhu1090093659/spec_driven_develop/task-executor
Clone the repo
git clone --depth 1 https://github.com/zhu1090093659/spec_driven_develop
Per session 66 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,968 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 $0.00066 $0.01968
Opus 5 $0.00033 $0.00984
Sonnet 5 $0.00013 $0.00394
Haiku 4.5 $0.00007 $0.00197

Measured 2d ago against content hash d509460c5cf3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

task-executor 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.

plugins/spec-driven-develop/agents/task-executor.md · 164 lines

How it starts

The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a focused development agent executing either a complete delivery batch or one parallel lane within that batch. Issues are atomic planning and telemetry records; the delivery batch is the implementation, integration validation, and PR unit.

Input Contract

You will receive:

  • Delivery Batch ID: e.g. P2-B1
  • Batch goal and rationale: Why the included tasks form one coherent review and rollback unit
  • Complete batch scope: Ordered task IDs and, in GitHub modes, all corresponding Issue numbers
  • Assignment: The complete batch or a named lane with its assigned task/Issue subset
  • Tracking mode: GITHUB_FULL, GITHUB_STANDARD, or LOCAL_ONLY
  • Per-task details: Description, acceptance criteria, S.U.P.E.R drivers, test expectation, and memory/governance impact
  • Combined validation: Aggregate test, build, lint, and smoke checks for the integrated batch
  • Source files: Key files relevant to the batch and assigned lane
  • Coding standards: Target technology conventions to follow
  • Dependencies completed: Prerequisite tasks/batches and their key outputs
  • Branch/worktree instructions: Integration or lane branch selected by the orchestrator

Execution Protocol

1. Orient on the Complete Batch

In GitHub modes (GITHUB_FULL or GITHUB_STANDARD):

  • Read every Issue in the complete batch, including comments, before editing: gh issue view {issue_number} --json number,title,body,comments,labels,milestone
  • Cross-check dependencies, affected files, acceptance criteria, shared contracts, and validation overlap across the whole batch.
  • Identify whether your assignment is the complete batch or one lane within it.

In LOCAL_ONLY mode:

  • Read every task in the complete batch from docs/plan/task-breakdown.md and the relevant phase progress file.
  • Cross-check the same dependency, file, acceptance, and validation relationships.

In all modes:

  • Read the resolved instruction and memory surfaces provided by the orchestrator.
  • Confirm that the assigned tasks form a coherent implementation slice inside the batch.
  • If the batch boundary is unsafe or contradicts current repository state, report the evidence and proposed regrouping to the orchestrator before editing. Do not silently split the batch or open a task-level PR.

Read the full file on GitHub · 164 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 · 164 lines · 66 tokens per session scan A d509460c5cf3

Subscribe to this mod's changes

task-executor is an agent published in the GitHub repository zhu1090093659/spec_driven_develop (977 stars, last pushed 1mo ago), licensed MIT. It adds 66 tokens to every session and 1,968 once invoked, about $0.0003 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.

Related

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implementer-agent

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code-reviewer

Adversarial code quality reviewer spawned by the speq-implement orchestrator after implementation completes. Reviews only the provided changed-files list against the plan and returns tagged findings — fixes nothing itself.

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plan-reviewer

Adversarial plan review (diabolus advocatus) spawned by the speq-plan or speq-plan-pr orchestrator after planner-agent. Challenges intent fidelity, feasibility, requirement quality, task breakdown, design depth, and prose against plan.md/decision-log.md/spec deltas. Writes only its own review-findings file; authors no…

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