architecture-blame

architecture-blame is a skill for Claude Code, Codex from Renzo-Tognella/DecisionsSearch. It costs 95 tokens per session (1,624 once invoked), scanned A, original, MIT.

A tool for reconstructing the history of an architectural decision: what is currently used, what alternatives were rejected, and what replaced earlier choices.

In plain words
What is it for?
Use it to investigate questions such as why the architecture uses a specific approach or what decision currently applies to a topic.
Why use it?
It helps explain why a system is structured or built with a particular technology, using recorded evidence instead of guesses.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to investigate questions such as why the architecture uses a specific approach or what decision currently applies to a topic.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/renzo-tognella/decisionssearch/architecture-blame
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 Renzo-Tognella/DecisionsSearch --skill architecture-blame
Clone the repo
git clone --depth 1 https://github.com/Renzo-Tognella/DecisionsSearch

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 architecture-blame

README.md
[![agentmods](https://agentmods.dev/badge/skills/renzo-tognella/decisionssearch/architecture-blame/github.svg)](https://agentmods.dev/skills/renzo-tognella/decisionssearch/architecture-blame)
Your own site
<a href="https://agentmods.dev/skills/renzo-tognella/decisionssearch/architecture-blame"><img src="https://agentmods.dev/badge/skills/renzo-tognella/decisionssearch/architecture-blame/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 architecture-blame

Your own site · 80×15
<a href="https://agentmods.dev/skills/renzo-tognella/decisionssearch/architecture-blame"><img src="https://agentmods.dev/badge/skills/renzo-tognella/decisionssearch/architecture-blame.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,624 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 $0.00095 $0.01624
Opus 5 $0.00048 $0.00812
Sonnet 5 $0.00019 $0.00325
Haiku 4.5 $0.00010 $0.00162

Measured 11d ago against content hash 5c5dc58808aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

architecture-blame 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 11d 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-memory/architecture-blame/SKILL.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architecture Blame

Você é o Git Blame da arquitetura: dado um tema, módulo ou tecnologia, reconstrói o que vigora, o que foi rejeitado, o que foi substituído e por quê. Cada decisão permanece em prosa; PRMemory fornece o objetivo, o resumo operacional e todos os arquivos que materializaram a escolha.

CORE RULE: Saída é timeline com evidência de AD, PR, alternativas e links. Sem fonte para uma substituição ou rationale, declarar lacuna; nunca completar a história por inferência.

When to activate

  • Trigger phrases: "por que a arquitetura é assim?", "por que usamos X?", "qual a decisão vigente sobre Y?", "architecture blame de Z"
  • Contexts: investigação de escolha estrutural/tecnológica vigente e seu histórico

Do NOT activate for:

  • "que decisões temos?" → use query-memory
  • "por que esse arquivo/trecho é assim?" → use code-blame
  • registrar decisão nova → use create-architectural-decision-memory

Relação com architecture.md

A seção Decisões vigentes de .decisionssearch/architecture.md é a projeção rápida do topo das timelines. O grafo de ArchitecturalDecisions e os links verificados são a fonte da investigação; se documento e grafo divergirem, mostrar ambos e preferir o grafo como estado persistido.

Inputs

  • topic (required): módulo, componente, tecnologia ou tema. Fonte: usuário.

Context load

  • Carregar .decisionssearch/architecture.md para resolver o topic.
  • Verificar MCP DecisionsSearch com um memory.query trivial.

Procedure

  1. Resolver a AD — memory.query com type=ArchitecturalDecision + topic, usando a tabela do architecture.md como filtro inicial.
    • Se houver mais de uma candidata plausível → listar e perguntar qual.
    • Se houver zero → dizer que não há decisão capturada e sugerir create-architectural-decision-memory.
  2. Percorrer substituições — seguir DEPRECATES da decisão nova para a antiga até a raiz. Só chamar uma versão de substituída quando a aresta existir.
  3. Coletar prosa da decisão — para cada versão, preservar summary, details e alternatives_considered sem reduzir a decisão a nomes de tecnologias.
  4. Coletar PRMemory operacional — consultar memory.pr.linked_memories para IMPLEMENTS/MODIFIES/EVIDENCES. Para cada PR, incluir summary, objetivo e changed_files completos. Se o tema também apontar para arquivo, fazer busca exata por arquivo e reranquear os PRs pelo resumo/objetivo antes de expandir por tema.
  5. Coletar rationale e contexto — consultar rationale de links/deprecate, reasoning via related_memory_ids e BusinessRules motivadoras. Separar fato, justificativa capturada e gap.
  6. Self-Refine gate — criticar contra:
    • cada versão tem memory_id, prosa e alternativas?
    • cada PR/arquivo citado existe e está ligado?
    • ordem e direção de DEPRECATES estão corretas?
    • alguma substituição ou razão foi inferida sem link? Refine até todas as respostas serem "sim"; só então apresentar.
  7. Apresentar timeline — decisão vigente no topo, alternativas e PRs associados; versões antigas abaixo com motivo da substituição e gaps explícitos.

Read the full file on GitHub · 135 lines

Files

What ships with it

1 file 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. 11d ago First seen · 135 lines · 95 tokens per session scan A 5c5dc58808aa

Subscribe to this mod's changes

architecture-blame is a skill published in the GitHub repository Renzo-Tognella/DecisionsSearch (0 stars, last pushed 18d ago), licensed MIT. It adds 95 tokens to every session and 1,624 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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