sdlc-orchestrator

sdlc-orchestrator is a skill for Codex from ashermahonin/agentic-skills. It costs 63 tokens per session (605 once invoked), scanned A, original, MIT.

A route planner for broad software work that coordinates the smallest set of specialist skills needed across product, architecture, coding, testing, security, and release. SDLC means the software development life cycle.

In plain words
What is it for?
Use it to classify a project, choose its entry point, freeze requirements and interfaces, assign parallel work, and coordinate delivery checks.
Why use it?
It prevents a large request from becoming an uncontrolled chain of activities. It clarifies ownership, dependencies, decisions, exclusions, and stopping points.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it to classify a project, choose its entry point, freeze requirements and interfaces, assign parallel work, and coordinate delivery checks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ashermahonin/agentic-skills/sdlc-orchestrator
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.

Any agent
npx skills add ashermahonin/agentic-skills --skill sdlc-orchestrator
Clone the repo
git clone --depth 1 https://github.com/ashermahonin/agentic-skills

Made for: 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 sdlc-orchestrator

README.md
[![agentmods](https://agentmods.dev/badge/skills/ashermahonin/agentic-skills/sdlc-orchestrator/github.svg)](https://agentmods.dev/skills/ashermahonin/agentic-skills/sdlc-orchestrator)
Your own site
<a href="https://agentmods.dev/skills/ashermahonin/agentic-skills/sdlc-orchestrator"><img src="https://agentmods.dev/badge/skills/ashermahonin/agentic-skills/sdlc-orchestrator/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for sdlc-orchestrator

Your own site · 80×15
<a href="https://agentmods.dev/skills/ashermahonin/agentic-skills/sdlc-orchestrator"><img src="https://agentmods.dev/badge/skills/ashermahonin/agentic-skills/sdlc-orchestrator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 605 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00063 $0.00605
Opus 5.5 $0.00025 $0.00242
Sonnet 5.5 $0.00013 $0.00121
Haiku 4.5 $0.00006 $0.00060

Measured 2mo ago against content hash e0dab64c6459, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sdlc-orchestrator 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 2mo 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.

agentic/skills/sdlc-orchestrator/SKILL.md · 62 lines

How it starts

The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SDLC orchestrator

Purpose

Choose the route, keep ownership clear, and stop a broad request from turning into an unbounded chain of skills.

Inputs

  • Restate the desired outcome in one sentence.
  • Read the repository state and relevant project memory.
  • Classify the task as a new product, existing-product change, narrow change, release, incident, review, documentation update, or agent-system task.
  • Identify the first decision that could invalidate later work.
  • Check that the runtime can read, write, execute, validate, and request approval as the route requires.

Decision process

  1. Select the smallest entrypoint in the installed route map. When no route map is exposed, use the phase and entrypoint guidance in the reference.
  2. Record the route, why it fits, what it deliberately excludes, and when it must stop.
  3. Run only the discovery and planning steps needed to resolve real uncertainty.
  4. Freeze affected behavior, interfaces, platform constraints, and acceptance criteria before decomposition.
  5. Give parallel workers disjoint ownership and define their merge order before delegation.
  6. For production code, route through tdd-workflow, engineering-quality, and service-implementation as the task requires.
  7. Match validation depth to the blast radius. Add security, compliance, performance, and release checks only when the affected surface calls for them.
  8. Update the canonical documentation and project memory with decisions future work needs.

Decision boundaries

  • A route defines ownership and order; it does not grant permission.
  • Keep read-only analysis separate from write-authorized implementation.
  • Verify current external behavior through primary documentation, preferably Context7 MCP where available.
  • Ask for approval immediately before irreversible, production-facing, costly, or security-sensitive actions.
  • Stop when missing user intent or unavailable evidence would materially change the result.

Decision record

  • Selected route and rejected broader alternatives
  • Decision, permission, and stop boundaries
  • Artifact ownership and merge order for parallel work
  • Validation, rollback, and completion evidence
  • Final handoff with documentation links

Read the full file on GitHub · 62 lines

Files

What ships with it

2 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. 2mo ago First seen · 62 lines · 63 tokens per session scan A e0dab64c6459

Subscribe to this mod's changes

sdlc-orchestrator is a skill published in the GitHub repository ashermahonin/agentic-skills (10 stars, last pushed 2mo ago), licensed MIT. It adds 63 tokens to every session and 605 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-08-31.

Related

sdlc-orchestrator compared with skills from other repositories

sdlc-orchestrator next to 6 skills from other repositories
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