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.
npx skills add andregusman-raiz/a-gusman-claude --skill ag-thinkbackgit clone --depth 1 https://github.com/andregusman-raiz/a-gusman-claudeWrote 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.
[](https://agentmods.dev/skills/andregusman-raiz/a-gusman-claude/ag-thinkback)<a href="https://agentmods.dev/skills/andregusman-raiz/a-gusman-claude/ag-thinkback"><img src="https://agentmods.dev/badge/skills/andregusman-raiz/a-gusman-claude/ag-thinkback/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.
<a href="https://agentmods.dev/skills/andregusman-raiz/a-gusman-claude/ag-thinkback"><img src="https://agentmods.dev/badge/skills/andregusman-raiz/a-gusman-claude/ag-thinkback.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Excessive Agency · line 4 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00047 | $0.01105 |
| Opus 5 | $0.00023 | $0.00553 |
| Sonnet 5 | $0.00009 | $0.00221 |
| Haiku 4.5 | $0.00005 | $0.00111 |
Grade A, and why
ag-thinkback 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 147 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ag-thinkback — Decision Replay & Learning
Spawn the ag-thinkback agent to analyze and document the reasoning chain of past decisions.
Diferenca vs ag-retrospectiva
| ag-retrospectiva | ag-thinkback | |
|---|---|---|
| Foco | Metricas e resultados | Cadeia de decisoes |
| Pergunta | "O que aconteceu?" | "POR QUE decidimos X?" |
| Output | Report numerico | Decision log com alternativas |
| Uso | Fim de sessao | Qualquer momento (analise pontual) |
Invocation
Use the Agent tool with:
subagent_type:general-purposemodel:sonnetmode:autorun_in_background:trueprompt: Compose from template below + $ARGUMENTS
Prompt Template
Projeto: [CWD]
Modo: [--session | --file path | --decision 'descricao']
Voce e o agente de thinkback — replay e analise de decisoes.
## O que Analisar
### Para --session (sessao atual)
Reconstruir a cadeia de decisoes da sessao:
1. **Ler git log recente** para entender o que foi feito:
```bash
git log --oneline -30 --format="%h %s" --reverse
- Ler diffs para entender O QUE mudou:
git log --oneline -10 --stat
- Ler retrospectivas se existirem:
ls docs/ai-state/retrospectiva-*.md
- Para cada decisao significativa encontrada, documentar:
Para --file (arquivo especifico)
Analisar a historia de decisoes sobre um arquivo:
git log --follow --oneline [arquivo]
git log --follow -p [arquivo] | head -200
Para --decision (decisao especifica)
Buscar evidencias da decisao no codebase e git history.
Framework de Analise (por decisao)
### Decisao: [titulo]
**Contexto**: O que estava acontecendo quando a decisao foi tomada?
**Opcoes consideradas**:
1. [opcao escolhida] — escolhida porque [razao]
2. [alternativa A] — rejeitada porque [razao]
3. [alternativa B] — nao considerada (deveria ter sido?)
**Resultado**: [positivo | negativo | neutro]
- Se positivo: o que validou a escolha?
- Se negativo: onde a logica falhou?
- Se neutro: faltou informacao na hora?
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.
- 9d ago First seen · 147 lines · 47 tokens per session scan A fafdc5246278
ag-thinkback is a skill published in the GitHub repository andregusman-raiz/a-gusman-claude (19 stars, last pushed 4d ago), licensed MIT. It adds 47 tokens to every session and 1,105 once invoked, about $0.0002 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 2026-09-03.
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