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 vynazevedo/first-plan --skill provenance-trackergit clone --depth 1 https://github.com/vynazevedo/first-planWrote 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/vynazevedo/first-plan/provenance-tracker)<a href="https://agentmods.dev/skills/vynazevedo/first-plan/provenance-tracker"><img src="https://agentmods.dev/badge/skills/vynazevedo/first-plan/provenance-tracker.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00064 | $0.02185 |
| Opus 5 | $0.00032 | $0.01092 |
| Sonnet 5 | $0.00013 | $0.00437 |
| Haiku 4.5 | $0.00006 | $0.00218 |
Grade A, and why
first-plan-provenance-tracker 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 8d 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 — 282 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Provenance & Freshness Tracker
Cada finding em .first-plan/ precisa de rastreabilidade completa - de onde veio, quando foi extraído, quão fresca é a info, quando expira, e o que substitui.
Por que existe
Sem provenance, fatos viram lendas. Esta skill garante que toda afirmação em .first-plan/ tem cadeia auditável até o código fonte. Isso elimina:
- Context poisoning - fatos stale interpretados como atuais
- Hallucinated facts - findings sem fonte verificável
- Untrackable drift - quando um finding ficou errado e por quê
- No-op refreshes - regerar tudo quando só uma coisa mudou
Schema de proveniência
Cada item em .first-plan/ (em qualquer arquivo) ganha campos no frontmatter ou inline (YAML/Markdown):
---
finding_id: F-<unique> # identificador estavel (ex: F-go-errors-001)
type: pattern | fact | rule | risk | feature | reuse_item
section: <section path> # ex: 02-conventions/errors
source: # de onde veio
type: code | doc | git | mcp | inferred
location: path:line # arquivo:linha
commit_sha: <SHA> # commit em que foi observado
extracted_from: # contexto adicional
- <file_path>
- <file_path>
extracted_at: 2026-05-04T22:00:00Z
extracted_by: discovery-analyst | pattern-archeologist | reconciliation-auditor | manual
confidence:
initial: 0.95 # confiança no momento da extração
current: 0.92 # após decay (calculado)
signals_used: # o que sustenta o score
- "10+ occurrences in current code"
- "documented in CLAUDE.md"
- "consistent across modules"
ttl:
days: 30 # validade default
expires_at: 2026-06-03T22:00:00Z
decay_curve: linear | step | none
lifecycle:
status: active | superseded | invalidated | expired
superseded_by: F-<id> # se substituido por finding mais novo
superseded_at: <timestamp>
invalidated_reason: <text> # se marcado invalido manualmente
---
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.
- 8d ago First seen · 282 lines · 64 tokens per session scan A 240f90413226
first-plan-provenance-tracker is a skill published in the GitHub repository vynazevedo/first-plan (23 stars, last pushed 14d ago), licensed MIT. It adds 64 tokens to every session and 2,185 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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