chip-low-power-architect

chip-low-power-architect is a skill for Claude Code from zhaixin244-wq/fnw. It costs 68 tokens per session (1,128 once invoked), scanned A, original, MIT.

A design guide for reducing power use in chip modules by dividing the chip into power areas and defining how each area shuts down, retains data, and restarts.

In plain words
What is it for?
Use it to design power domains, isolation and retention rules, clock gating, low-power state machines, UPF or CPF power-intent descriptions, and related verification plans.
Why use it?
It helps engineers account for isolation, saved state, clock control, state transitions, and risks when parts of a chip are powered down.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to design power domains, isolation and retention rules, clock gating, low-power state machines, UPF or CPF power-intent descriptions, and related verification plans.

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Install with agentmods
npx agentmods add skills/zhaixin244-wq/fnw/chip-low-power-architect
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 zhaixin244-wq/fnw --skill chip-low-power-architect
Clone the repo
git clone --depth 1 https://github.com/zhaixin244-wq/fnw

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,128 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 $0.00068 $0.01128
Opus 5 $0.00034 $0.00564
Sonnet 5 $0.00014 $0.00226
Haiku 4.5 $0.00007 $0.00113

Measured 12d ago against content hash 78d63cf1064f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

chip-low-power-architect 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 12d 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.

.claude/skills/chip-low-power-architect/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Chip Low-Power Architect

任务

输出模块级低功耗架构方案。

执行步骤

  1. 分析应用场景中的功耗模式(Active/Idle/Sleep/Deep-Sleep/Shutdown)。
  2. 定义 Power Domain 划分:
    • 常开域(Always-On)
    • 可关断域(Switchable)
    • 保持域(Retention)
  3. 为每个域边界定义隔离策略(Isolation Cell 类型、默认值、使能信号)。
  4. 定义保持策略(Retention Register 类型、保存/恢复触发条件)。
  5. Clock Gating 规划
    • 识别可门控的时钟域和对应使能条件
    • 指定 ICG Cell 名称(如 CKLNQD1),实例化模板:CKLNQD1 u_icg (.CP(clk), .E(en), .TE(scan_en), .Q(gated_clk))
    • 标注 DFT scan_en 端口需求
    • 遵循编码规范 §5:禁止门控时钟直接驱动组合逻辑,必须通过标准 ICG
  6. 设计低功耗状态机(Power State Machine / PSM),标注状态转换条件、转换延迟、硬件/软件触发源。
  7. 评估状态转换期间的毛刺、竞争、上电时序风险。
  8. 给出 UPF/CPF 意图描述建议与验证策略(低功耗仿真、形式验证)。

输出格式

### 低功耗架构设计

#### Power Domain 划分
| Domain | 电压 | 状态 | 隔离 | 保持 | 备注 |
|--------|------|------|------|------|------|

#### 隔离策略
| 信号 | 源域 | 目标域 | Iso 类型 | 默认值 | 使能信号 |
|------|------|--------|----------|--------|----------|

#### Clock Gating 方案
| 时钟域 | ICG Cell | 使能条件 | Scan Enable | 备注 |
|--------|----------|----------|-------------|------|
| `clk` | `CKLNQD1` | `{en}` | `scan_en` | 标准 ICG,DFT 友好 |

#### 低功耗状态机
> 使用 `chip-png-d2-gen` 生成 D2 状态机图(`wd_{module}_psm.d2`),编译为 PNG。禁止使用 Mermaid。
>
> 状态定义:Active → Sleep → Deep-Sleep → Shutdown,标注转换条件和延迟。

#### 风险与缓解
- ...

使用示例

示例 1

  • 用户:「为 data_adpt 设计低功耗架构方案」
  • 行为:分析功耗模式(Active/Sleep),定义 Always-On 和可关断域,设计隔离策略和保持策略,输出功耗状态机和 UPF 意图

示例 2

  • 用户:「buf_mgr 需要支持 Clock Gating,帮我规划」
  • 行为:评估模块级 Clock Gating 可行性,定义 ICG 使能条件,标注 DFT scan_en 端口需求,输出低功耗方案表格

异常处理

场景 触发条件 处理动作
功耗模式未指定 用户未明确 Active/Sleep 模式 按默认 Active+Sleep 两模式设计,标注 [LP-ASSUMED]
电压域信息缺失 未指定工艺电压 使用通用电压假设,标注 [LP-NO-VOLTAGE]
UPF 工具不可用 无 UPF 验证环境 仅输出意图描述,标注 [LP-INTENT-ONLY]

检查点

检查前

  • 确认模块功能和接口已了解
  • 确认功耗模式需求已明确

检查后

  • 确认 Power Domain 划分表已输出
  • 确认隔离策略和保持策略已定义
  • 确认 Clock Gating 方案已包含 ICG Cell 和 scan_en
  • 确认功耗状态机转换条件已标注

降级策略

场景 行为
无电压域信息 使用通用电压假设,标注 [LP-NO-VOLTAGE]
UPF 工具不可用 仅输出意图描述,标注 [LP-INTENT-ONLY]
功耗模式未指定 按 Active+Sleep 两模式设计,标注 [LP-ASSUMED]

Read the full file on GitHub · 91 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. 12d ago First seen · 91 lines · 68 tokens per session scan A 78d63cf1064f

Subscribe to this mod's changes

chip-low-power-architect is a skill published in the GitHub repository zhaixin244-wq/fnw (29 stars, last pushed 3mo ago), licensed MIT. It adds 68 tokens to every session and 1,128 once invoked, about $0.0003 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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