dev-flow-oneliner-full

dev-flow-oneliner-full is a skill for Claude Code, Codex from movebrickschi/harness-engineering-mcp. It costs 103 tokens per session (1,188 once invoked), scanned A, original, MIT.

A lightweight workflow for a small, one-sentence request that changes both the front end and back end. It writes a short requirements document and interface contract, then checks the complete request-to-database path before expanding the work.

In plain words
What is it for?
Use it for small full-stack changes such as adding sorting to search results, provided the work does not require database changes or authentication changes and is expected to stay within the stated effort limit.
Why use it?
It adds enough structure to catch hidden complexity without treating every small request like a large project. Database, authentication, or larger changes are directed to the fuller workflow.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

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/movebrickschi/harness-engineering-mcp/dev-flow-oneliner-full
Any agent
npx skills add movebrickschi/harness-engineering-mcp --skill dev-flow-oneliner-full
Clone the repo
git clone --depth 1 https://github.com/movebrickschi/harness-engineering-mcp

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 dev-flow-oneliner-full

README.md
[![agentmods](https://agentmods.dev/badge/skills/movebrickschi/harness-engineering-mcp/dev-flow-oneliner-full.svg)](https://agentmods.dev/skills/movebrickschi/harness-engineering-mcp/dev-flow-oneliner-full)
Your own site
<a href="https://agentmods.dev/skills/movebrickschi/harness-engineering-mcp/dev-flow-oneliner-full"><img src="https://agentmods.dev/badge/skills/movebrickschi/harness-engineering-mcp/dev-flow-oneliner-full.svg" alt="Measured on agentmods" height="20"></a>
Per session 103 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,188 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 $0.00103 $0.01188
Opus 5 $0.00051 $0.00594
Sonnet 5 $0.00021 $0.00238
Haiku 4.5 $0.00010 $0.00119

Measured 5d ago against content hash 820b345a30a6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

dev-flow-oneliner-full 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.

assets/skills/dev-flow-oneliner-full/SKILL.md · 109 lines

How it starts

The opening of the file, as written. The whole thing — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.

dev-flow-oneliner-full

适用场景

  • "搜索结果加个排序选项" 这类一句话需求,但同时涉及前后端
  • 不涉及 DB 迁移、不改鉴权
  • 预估 4 小时内可完成(>8 工时强制升级 /dev-flow-doc-full

前置条件

确认 _playbook.md Part B.3 启动参数;one_liner 必填;target_project 可能是前后端 2 个目录。

流程步骤

流程是 /dev-flow-oneliner-fe/dev-flow-oneliner-be 的并集 + 阶段 2 端到端时序图

阶段 0 · 上下文初始化

move_agent_to_root 进对应项目(前后端都要切一次);建知识库目录;META.md 极简版。

阶段 1 · 一句话补 PRD

  • MINI_PRD.md + API_CONTRACT.md
  • 强制升级阈值
    • 涉及 DB → 升级 /dev-flow-doc-full
    • 8 工时 → 升级 /dev-flow-doc-full

    • 涉及鉴权改动 → 升级 /dev-flow-doc-full

阶段 2 · 端到端时序图(必出)

mermaid 时序图标出:用户操作 → 前端事件 → API 调用 → DB 读写 → 响应 → 前端展示。

阶段 3 · 卡点 1(合并版)

prompt: "MINI_PRD + API_CONTRACT + 时序图就绪。请确认:"
options:
  - "理解正确,进入实现"
  - "需要修改(说明)"
  - "实际比想的复杂,建议升级到 dev-flow-doc-full"

阶段 4 · 项目勘察(精简)

并行 2 个 explore subagent:

  • 前端待修改文件 + 复用
  • 后端待修改文件 + IMPACT_ANALYSIS.md

阶段 5 · 方案设计

IMPLEMENTATION_PLAN.md 一页内:前端改动 + 后端改动 + 时序图。

阶段 6 · 端到端切片实现

  • backend-agent + frontend-agent 并行
  • 实现完后必须真实端到端跑一遍(无 mock)

阶段 7 · 自查

/qa(quick)+ /review;UI 改动 → /design-review;鉴权改动 → /cso

阶段 8 · 上线

/ship/land-and-deploy/canary

阶段 9 · 复盘(极简)

append _lessons.md 一行。

错误处理

  • 任何升级阈值触发 → 强制升级 /dev-flow-doc-full
  • 端到端跑不通(前端拿不到字段、后端报错)→ 回阶段 5 重新方案

产物清单

/dev-flow-oneliner-fe + /dev-flow-oneliner-be 产物并集 + 端到端时序图。

支持的修饰符

  • 几乎所有修饰符出现都意味着规模超出"一句话"范畴 → 直接升级
  • 唯一可能的轻量场景:M1(带设计稿且只是小改)→ 阶段 7 必做 /design-review

详细 delta 见 _playbook.md Part D

与其他 skill 的关系

  • 通常被 /dev-flow 路由到(也可被用户直接触发)
  • 升级条件触发 → 退出 → 调用 /dev-flow-doc-full
  • 派发 backend-agentfrontend-agent
  • 自查链:/qa/review/cso/design-review
  • 上线链:/ship/land-and-deploy/canary

附录

Read the full file on GitHub · 109 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 · 109 lines · 103 tokens per session scan A 820b345a30a6

Subscribe to this mod's changes

dev-flow-oneliner-full is a skill published in the GitHub repository movebrickschi/harness-engineering-mcp (2 stars, last pushed 3mo ago), licensed MIT. It adds 103 tokens to every session and 1,188 once invoked, about $0.0005 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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