sdlc-guided

sdlc-guided is a skill for Claude Code from Jarroslav/agentic-os. It costs 115 tokens per session (1,071 once invoked), scanned A, original, Apache-2.0.

An entry point for a human-guided software development life cycle (SDLC), the process of taking a software idea from intake through planning, building, and checking. It passes the task to the proper workflow without changing the repository itself.

In plain words
What is it for?
Use it to begin an SDLC run from a task, an external work item, or a new idea when the host supports the delegated workflow.
Why use it?
It provides a controlled way to start the workflow while preventing unfinished planning files or other run records from being created too early.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Codex.

Part of the agentic-sdlc plugin — 27 skills, 5 agents shipped together

Good fit Use it to begin an SDLC run from a task, an external work item, or a new idea when the host supports the delegated workflow.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jarroslav/agentic-os/sdlc-guided
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 Jarroslav/agentic-os --skill sdlc-guided
Clone the repo
git clone --depth 1 https://github.com/Jarroslav/agentic-os

Made for: Claude Code.

Or install agentic-sdlc, the plugin that ships this one along with the rest of its 27 skills, 5 agents.

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-guided

README.md
[![agentmods](https://agentmods.dev/badge/skills/jarroslav/agentic-os/sdlc-guided.svg)](https://agentmods.dev/skills/jarroslav/agentic-os/sdlc-guided)
Your own site
<a href="https://agentmods.dev/skills/jarroslav/agentic-os/sdlc-guided"><img src="https://agentmods.dev/badge/skills/jarroslav/agentic-os/sdlc-guided.svg" alt="Measured on agentmods" height="20"></a>
Per session 115 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,071 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 $0.00115 $0.01071
Opus 5 $0.00057 $0.00535
Sonnet 5 $0.00023 $0.00214
Haiku 4.5 $0.00012 $0.00107

Measured 7d ago against content hash 557a8e2fccb2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

sdlc-guided 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 7d 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/agentic-sdlc/skills/sdlc-guided/SKILL.md · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

sdlc-guided

The doorway into the human-in-the-loop agentic-sdlc flow. On hosts like Codex that have skills but no commands, this stands in for the retired sdlc:start command.

Stay a doorway

A doorway that starts doing the work is no longer a doorway, and a run whose artifacts were half-written before Phase 0 cannot be reasoned about. So this skill reads intent and delegates; it does not touch the repository.

Specifically, nothing here may:

  • Make docs/superpowers/runs/<run-id>/, or any other run or task directory.
  • Write meta.json, requirements.md, complexity.json, design.md, plan.md, events.jsonl, decisions.jsonl, work-item.md, or any ledger.
  • Do a phase's work early — no intake, no sizing, no brainstorming, no planning, no branch guard, no building, no QA, no status repair.
  • Improvise sdlc-engine because the host would not invoke it.

That last one is the tempting failure. If sdlc-engine cannot be reached, say startup is blocked and stop there. A hand-rolled approximation looks helpful and leaves behind artifacts nothing downstream can trust. Ownership of every artifact starts inside sdlc-engine Phase 0, and not one step sooner.

When the project owns implementation

Read .agentic/agentic-sdlc/config.json before delegating. If it names project orchestrators, pass their routing contract through to sdlc-engine: this package still owns intake, planning, QA and the delivery handoff, while implementation is delegated once to the orchestrator the project selected. Fleet workers are never called directly — going around the project's own orchestrator is how two pipelines end up believing they own the same change.

Inputs

  • raw_input — whatever the user is asking for: prose, a tracker reference, or a path to a story file
  • mode_flag--greenfield when starting from nothing, otherwise unset
  • escalate_on — risk flags that force a human decision; defaults to ["security", "breaking-change"]

Usage Examples

Read the full file on GitHub · 101 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. 7d ago First seen · 101 lines · 0 tokens per session scan A 557a8e2fccb2

Subscribe to this mod's changes

sdlc-guided is a skill published in the GitHub repository Jarroslav/agentic-os (0 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 115 tokens to every session and 1,071 once invoked, about $0.0006 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 2026-08-31.

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