implement

implement is a skill for Claude Code from XRenSiu/claude-code-forge. It costs 216 tokens per session (1,925 once invoked), scanned A, original, MIT.

A card-based implementation workflow lets an agent implement one approved task card within its file and acceptance-check limits. It uses isolated context, locked tests, controlled commits, and escalation when repeating the same failure makes no progress.

In plain words
What is it for?
Use it to implement an approved task card, run its checks, create compliant commits, and escalate when the card or plan needs to change.
Why use it?
Giving an implementer the whole project history can cause unrelated edits, test changes that merely hide failures, or repeated attempts at the wrong solution. File permissions and fixed checks keep the work tied to the assigned card.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Part of the sdlc plugin — 14 skills, 5 agents shipped together

Good fit Use it to implement an approved task card, run its checks, create…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/xrensiu/claude-code-forge/implement
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 XRenSiu/claude-code-forge --skill implement
Clone the repo
git clone --depth 1 https://github.com/XRenSiu/claude-code-forge

Made for: Claude Code.

Or install sdlc, the plugin that ships this one along with the rest of its 14 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 implement

README.md
[![agentmods](https://agentmods.dev/badge/skills/xrensiu/claude-code-forge/implement.svg)](https://agentmods.dev/skills/xrensiu/claude-code-forge/implement)
Your own site
<a href="https://agentmods.dev/skills/xrensiu/claude-code-forge/implement"><img src="https://agentmods.dev/badge/skills/xrensiu/claude-code-forge/implement.svg" alt="Measured on agentmods" height="20"></a>
Per session 216 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,925 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 $0.00216 $0.01925
Opus 5 $0.00108 $0.00962
Sonnet 5 $0.00043 $0.00385
Haiku 4.5 $0.00022 $0.00193

Measured today against content hash e82da52f0cee, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

implement 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 today.

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/sdlc/skills/implement/SKILL.md · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

implement — 一张卡,一个看不见评审的实现者

产物是限定在卡白名单内的 diff、按 /commit 规则落地的 commit(footer Card: CARD-xx)、以及状态机里 该卡的 done 状态。本文件写:实现者能看到什么、什么算做完、原语与门、失败怎么走。怎么写代码是引擎的份额。

缺口(Control + Judgment)

deletion 测试:撤掉本 skill,引擎会把整个对话历史、评审 skill 的判据、其他卡的改动一起塞给实现者, 改动溢出白名单、顺手改掉一个测试断言让它变绿、失败后在同一处重试到上下文耗尽。缺的是隔离(γ)、 落地前的闸(已编译在 verify_commit.py)、"做完"的判据与升级规则(γ)。

世界(Σ)

  • 实现者看到的全部输入:一张卡(assets/card_context.md 形状)+ sdlc_state.py show 的摘要 + 该卡的 AC 子集 + allowed_files 内的源码。看不到:评审 skill 的提示与判据、隐藏变体集、spec-robustness.md、 其他卡、账本里评审者的发现。这是训练期信息隔离的实现形态(干活的不许看日志)。
  • 执行器可换self(当前会话,仍遵守隔离——只读卡)、agentagents/card-implementer.md,全新上下文)、 ratchet(需要跑到达标为止的卡)、forge-teams(并行多卡,邻居)。隔离规则对所有执行器相同。
  • 红-绿:卡的 AC 子集对应的测试由 /test-suite-generator 事先写好并锁;实现前它们必须是红的(基线上跑 一次记录),实现后变绿。测试文件在 forbidden_files 里——实现者改不了。
  • 一卡多 commit 合法(按关注点),但每个 commit 都过 verify_commit.py --card --lock
  • 失败指纹:同一张卡同一失败摘要第二次出现 = 无进展,sdlc_state.py fail 会判 escalate(方案层:重拆或改卡), 不是"再试一次"。
  • 关于用户的 Σ:"先把功能做出来再说"= 仍然只在白名单内做;"测试写得不对"= 走变更提案,不是改测试。

判据(φ)

  • 卡的 ac_ids 对应测试全绿(/qa-reviewer 或直接跑测试入口);全套件无回归;lint / 类型 / 构建绿(存在则跑)。
  • 每个 commit verify_commit.py --card <卡> --lock .done_when.lock exit 0。
  • diff 内没有卡 forbidden_files 的文件;没有新增依赖(有则记 notes 并进 A 档检查)。
  • 残差:实现是否走捷径满足测试(/spec-gaming-detector 在整体验收时看);本 skill 不自评。

原语(Π)

  • assets/card_context.md —— 交给实现者的输入形状(卡 + 状态摘要 + AC 子集 + 红基线记录)。
  • ../../agents/card-implementer.md —— 全新上下文的实现者定义。
  • ../commit/scripts/verify_commit.py —— 落地前的闸;../sdlc/scripts/sdlc_state.py card / fail —— 登记与升级。
  • references/executors.md —— 四种执行器的接法与隔离检查表。

门(γ)

  • 前置cards.lint_passed=true.done_when.lock 存在;该卡 AC 的测试存在且在基线上为红(无测试则 notes 写明 no-tests-for: AC-xxx 并在整体验收时补——不许实现者自己写验收测试)。
  • done_when(本卡):AC 子集绿 ∧ 全套件无回归 ∧ 每个 commit 过闸 ∧ sdlc_state.py card CARD-xx --status done --commit <sha>
  • 升级fail --signal card_test_fail --card CARD-xx --fingerprint <摘要>;返回 escalate: true → 停,写失败报告, 回 /plan-cards 或交人。绝不绕过。

Read the full file on GitHub · 93 lines

Files

What ships with it

4 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. today Changed · +9 lines e82da52f0cee
  2. yesterday First seen · 84 lines · 216 tokens per session scan A 55a4cd28968a

Subscribe to this mod's changes

implement is a skill published in the GitHub repository XRenSiu/claude-code-forge (2 stars, last pushed today), licensed MIT. It adds 216 tokens to every session and 1,925 once invoked, about $0.0011 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 2026-09-05.

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