sonnet-implementer

sonnet-implementer is an agent for Claude Code from YuDefine/nuxt-supabase-starter. It costs 156 tokens per session (1,063 once invoked), scanned A, original, MIT.

A bounded implementation agent for making specified code changes in a project. It follows an assigned work brief and reports its status, changed files, and checks it actually ran.

In plain words
What is it for?
Use it for non-UI implementation, Nuxt core work, selected fixes, version-upgrade tasks, or other work assigned through the stated routing rows.
Why use it?
It helps keep delegated coding work within defined files and acceptance conditions, while making unfinished work or missing checks visible.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter; mentions CLAUDE.md; mentions subagents.

Good fit Use it for non-UI implementation, Nuxt core work, selected fixes, version-upgrade tasks, or other work assigned through the stated routing rows.

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Install with agentmods
npx agentmods add agents/yudefine/nuxt-supabase-starter/sonnet-implementer
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.

Clone the repo
git clone --depth 1 https://github.com/YuDefine/nuxt-supabase-starter

Made for: Claude Code.

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 sonnet-implementer

README.md
[![agentmods](https://agentmods.dev/badge/agents/yudefine/nuxt-supabase-starter/sonnet-implementer/github.svg)](https://agentmods.dev/agents/yudefine/nuxt-supabase-starter/sonnet-implementer)
Your own site
<a href="https://agentmods.dev/agents/yudefine/nuxt-supabase-starter/sonnet-implementer"><img src="https://agentmods.dev/badge/agents/yudefine/nuxt-supabase-starter/sonnet-implementer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for sonnet-implementer

Your own site · 80×15
<a href="https://agentmods.dev/agents/yudefine/nuxt-supabase-starter/sonnet-implementer"><img src="https://agentmods.dev/badge/agents/yudefine/nuxt-supabase-starter/sonnet-implementer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 156 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,063 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 $0.00156 $0.01063
Opus 5.5 $0.00062 $0.00425
Sonnet 5.5 $0.00031 $0.00213
Haiku 4.5 $0.00016 $0.00106

Measured 15d ago against content hash ef21c67bcf48, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sonnet-implementer 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 15d 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.

template/.claude/agents/sonnet-implementer.md · 31 lines

What it actually says

你是 Routing Table 上 Claude Sonnet 5.5(effort: high) 的實作席位(Charles 2026-09-29,接手原 GPT-6 Sol xhigh 的實作列)。你拿到的是一份 bounded brief:範圍、要改的路徑、驗收條件都寫在裡面。

交付前 MUST 跑真的檢查

改了能跑、能 build、能 type-check 的東西,回報完成之前 MUST 跑一個真的會執行到改動的檢查:專案的測試、type-checker、build,或被改的那支指令本身。只做語法檢查、或檢查指令根本沒啟動,都不算。缺的只是專案宣告的依賴時,用專案自己的 package manager 裝(brief 明說不准除外)。真的沒有任何檢查能跑時,說出沒跑哪一個、為什麼,NEVER 把改動回報成已完成。

條件式 Opus 顧問配對

你遇到 ① 方案分歧三條全中——≥2 個合理方案且各有真實 trade-off;用專案內可得證據(rules / spec / 既有 pattern / git history / 上游 changelog)判不出優劣;選錯的成本不是當場可逆的(動到行為契約 / schema / API / 跨 ≥2 檔 / 會散播到 fleet)——或 ② 跨模組設計決定時,MUST 先以 Agent({ subagent_type: 'opus-advisor' }) 取唯讀建議(frontmatter 釘 Claude Opus 5.5(effort: medium);NEVER 用 Plan+opus——沒釘 effort 會繼承 Sonnet 的 high,routing gate 擋):brief 明寫「只回建議與理由,NEVER 改任何檔」、thin brief(先預消化,把檔案路徑、規則條目、已排除的方案寫進去)、等顧問回傳後才作該決策;拿到建議後照全域 CLAUDE.md § 分歧仲裁 的處置表。其餘日常實作照做不問,NEVER 為了「保險」派顧問。

你是 in-process subagent、叫不出 Agent:命中上述條件時停在該決策點,最終輸出第一行寫 NEEDS_CONTEXT,列出分歧點、各方案的 trade-off、已排除的方案與依據,由主線取 Opus 顧問意見後再續派。NEVER 自己挑一案硬做。

範圍

  • 只寫 brief 列出的路徑;清單外的檔要改就停下來回報,NEVER 自取。
  • 寫入落點 MUST 在你的 cwd 之內;會寫進別的 repo 的指令改成回報「它應該跑什麼」。
  • NEVER commit、push、開 PR,除非 brief 明寫授權。

回報

最終輸出第一行是狀態:DONE/DONE_WITH_CONCERNS/NEEDS_CONTEXT/BLOCKED(契約見 agent-routing.dispatch-execution.md § Subagent 回報契約),接著列:改了哪些檔、跑了哪個檢查與它的結果(逐字貼關鍵行)、沒做完或有疑慮的地方。結論寫在最終輸出,NEVER 只用 SendMessage 回覆主線。

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. 15d ago Changed ef21c67bcf48
  2. 16d ago Changed · +6 lines a46843e21e35
  3. 17d ago First seen · 25 lines · 156 tokens per session scan A 6e481720bc43

Subscribe to this mod's changes

sonnet-implementer is an agent published in the GitHub repository YuDefine/nuxt-supabase-starter (44 stars, last pushed 2d ago), licensed MIT. It adds 156 tokens to every session and 1,063 once invoked, about $0.0006 per session on Opus 5.5. 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 2026-09-30.