sdlc-fast

sdlc-fast is a skill for Claude Code, Codex from Koroqe/claude-code-sdlc. It costs 44 tokens per session (2,898 once invoked), scanned A, original, MIT.

A manually invoked shortcut for treating a requested change as a single trivial edit. It skips the normal initial sorting step and follows the fast execution path.

In plain words
What is it for?
Use it only by explicitly invoking the fast command with a change description, when that change genuinely fits a one-edit workflow.
Why use it?
It avoids the overhead of the full development process when the developer already knows the change is very small. It does not decide on its own when a task is suitable for this path.

Skill for Claude CodeCodex

Part of the claude-code-sdlc plugin — 9 skills, 21 agents, 6 hooks shipped together

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/koroqe/claude-code-sdlc/sdlc-fast
Any agent
npx skills add Koroqe/claude-code-sdlc --skill sdlc-fast
Clone the repo
git clone --depth 1 https://github.com/Koroqe/claude-code-sdlc

Made for: Claude Code, Codex.

Or install claude-code-sdlc, the plugin that ships this one along with the rest of its 9 skills, 21 agents, 6 hooks.

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-fast

README.md
[![agentmods](https://agentmods.dev/badge/skills/koroqe/claude-code-sdlc/sdlc-fast.svg)](https://agentmods.dev/skills/koroqe/claude-code-sdlc/sdlc-fast)
Your own site
<a href="https://agentmods.dev/skills/koroqe/claude-code-sdlc/sdlc-fast"><img src="https://agentmods.dev/badge/skills/koroqe/claude-code-sdlc/sdlc-fast.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,898 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 $0.00044 $0.02898
Opus 5 $0.00022 $0.01449
Sonnet 5 $0.00009 $0.00580
Haiku 4.5 $0.00004 $0.00290

Measured 5d ago against content hash 72cfd6fd3379, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sdlc-fast 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 5d 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/sdlc-fast/SKILL.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Command: SDLC Fast (Override)

This is an override entry point, not the primary path. The primary, autonomous path is Phase 0: Triage inside skills/develop-feature/SKILL.md — read it first if you have not already — which classifies every request into fast/quick/full on its own, with no human involvement. /sdlc-fast exists only so a developer can explicitly overrule that verdict and assert fast tier directly. It is never invoked by the pipeline itself, and no run needs it in order to complete (NFR-2) — it is a human-typed escape hatch, not a step in the normal flow.

Arguments

The change to make is $feature (also available as $ARGUMENTS). When it is empty, ask the user what to change before doing anything else — do NOT infer a change from surrounding context.

Literal-token activation only (FR-6.3)

This skill activates ONLY because it was literally invoked as /sdlc-fast <description> — an actually-invoked slash command, the same literal-token discipline already governing no-changelog and every other documented flag in this harness. A request's prose containing a word like "quick," "fast," "small," or "trivial," submitted as ordinary conversational text rather than this literal command, does NOT activate this skill and MUST still be classified by Phase 0 Triage in skills/develop-feature/SKILL.md unmodified — including being forced to full by one of its full-forcing signals if applicable. Nothing in this file infers activation from vocabulary; only the literal token does.

What this bypasses, and what it does not (FR-6.2)

Invoking this skill skips Phase 0 Triage entirely: no estimated file set is stated as a classification input, no full-forcing/fast-tier/quick-tier signal check runs, and no tier: ... reasoning is produced or considered. The human asserts the tier; the pipeline does not compute it. The override skips classification, never the safety rails — FR-2's escalation rules (restated in full below, self-sufficiently, so this file never depends on skills/develop-feature/SKILL.md being read first for its own execution) still apply once this skill is running.

Read the full file on GitHub · 89 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. 5d ago First seen · 89 lines · 44 tokens per session scan A 72cfd6fd3379

Subscribe to this mod's changes

sdlc-fast is a skill published in the GitHub repository Koroqe/claude-code-sdlc (51 stars, last pushed 3d ago), licensed MIT. It adds 44 tokens to every session and 2,898 once invoked, about $0.0002 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.

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