agent-workflow

agent-workflow is a skill for Claude Code, Codex from d-padmanabhan/agent-engineering-handbook. It costs 71 tokens per session (978 once invoked), scanned A, original, MIT.

A structured workflow for handling larger coding tasks through planning, implementation, review, testing, and audit steps.

In plain words
What is it for?
Organizing multi-file changes, QA checks, approvals, context management, and final reviews.
Why use it?
It reduces rework and scope mistakes by requiring agreement on the approach before code changes begin.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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 skills/d-padmanabhan/agent-engineering-handbook/agent-workflow
Any agent
npx skills add d-padmanabhan/agent-engineering-handbook --skill agent-workflow
Clone the repo
git clone --depth 1 https://github.com/d-padmanabhan/agent-engineering-handbook

Made for: Claude Code, Codex.

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 agent-workflow

README.md
[![agentmods](https://agentmods.dev/badge/skills/d-padmanabhan/agent-engineering-handbook/agent-workflow.svg)](https://agentmods.dev/skills/d-padmanabhan/agent-engineering-handbook/agent-workflow)
Your own site
<a href="https://agentmods.dev/skills/d-padmanabhan/agent-engineering-handbook/agent-workflow"><img src="https://agentmods.dev/badge/skills/d-padmanabhan/agent-engineering-handbook/agent-workflow.svg" alt="Measured on agentmods" height="20"></a>
Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 978 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 5.1 $0.00071 $0.00978
Opus 5 $0.00036 $0.00489
Sonnet 5 $0.00014 $0.00196
Haiku 4.5 $0.00007 $0.00098

Measured 3d ago against content hash 138c3ea43245, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

agent-workflow 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 3d 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.

skills/agent-workflow/SKILL.md · 116 lines

How it starts

The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Workflow

Mandatory classification, approval, scope, implementation, and review gates are owned by the workflow rule (${HANDBOOK_ROOT}/rules/010-workflow.mdc). This skill owns detailed procedures and templates.

Golden Rules

Follow this three-phase approach for all non-trivial work:

  1. PLAN → Design solution → Document approach → WAIT FOR EXPLICIT APPROVAL
  2. IMPLEMENT → Code ONLY what was approved → STOP when agreed scope is complete
  3. REVIEW → Verify results → Suggest improvements → Return to PLAN phase

Critical Violations to Avoid

- DON'T DO THIS:
User: "Can you add authentication?"
AI: [Immediately starts coding without discussion]

+ DO THIS INSTEAD:
User: "Can you add authentication?"
AI: "Let me design a solution first. Key decisions needed:
     - OAuth 2.0 vs local authentication?
     - JWT tokens vs session-based?
     - User data storage location?
     
     Let's agree on the approach before I write any code."

Why This Matters:

  • Skipping planning → Wasted time, wrong solutions, scope creep
  • Implementing unplanned features → Breaking existing code, technical debt
  • Not stopping after agreed scope → Confusion, frustration, rework

Complexity Levels

Level Type Workflow Example
1 Simple Direct implementation → Quick review Fix typo, simple bug fix
2 Moderate Brief plan → QA → Implement → Review Add new function
3 Complex Full Plan → Creative → QA → Implement → Review Multi-file feature
4 Architectural Detailed Plan → Creative (mandatory) → QA → Implement → Review Major refactoring

Phase 1: Planning

You MUST NOT begin implementation until:

  • User has explicitly approved the plan
  • All clarifying questions have been answered
  • The scope is clearly defined and agreed upon

Process:

  1. Analyze the request - understand scope, constraints, requirements
  2. Check existing code - look for patterns and reusable components
  3. Design the solution - propose approach with alternatives
  4. WAIT FOR APPROVAL - present plan and await confirmation

Read the full file on GitHub · 116 lines

Files

What ships with it

8 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 116 lines · 71 tokens per session scan A 138c3ea43245

Subscribe to this mod's changes

agent-workflow is a skill published in the GitHub repository d-padmanabhan/agent-engineering-handbook (16 stars, last pushed 6d ago), licensed MIT. It adds 71 tokens to every session and 978 once invoked, about $0.0004 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 2026-09-03.

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