vector-scan

vector-scan is an agent for coding agents from keep-starknet-strange/starknet-agentic. It costs 0 tokens per session (907 once invoked), scanned A, original, MIT.

Instructions for a security auditor examining one assigned attack category in Cairo and Starknet code, a programming ecosystem for blockchain applications.

In plain words
What is it for?
Use it for focused security reviews of Cairo or Starknet code and for producing structured findings.
Why use it?
It enforces a structured review process so possible vulnerabilities are checked consistently and reported in the required format.

Agent

Part of the cairo-auditor plugin — 1 skill, 2 agents shipped together

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.

agentmods
npx agentmods add agents/keep-starknet-strange/starknet-agentic/vector-scan
Clone the repo
git clone --depth 1 https://github.com/keep-starknet-strange/starknet-agentic

Or install cairo-auditor, the plugin that ships this one along with the rest of its 1 skill, 2 agents.

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 vector-scan

README.md
[![agentmods](https://agentmods.dev/badge/agents/keep-starknet-strange/starknet-agentic/vector-scan.svg)](https://agentmods.dev/agents/keep-starknet-strange/starknet-agentic/vector-scan)
Your own site
<a href="https://agentmods.dev/agents/keep-starknet-strange/starknet-agentic/vector-scan"><img src="https://agentmods.dev/badge/agents/keep-starknet-strange/starknet-agentic/vector-scan.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 907 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00907
Opus 5 $0.00000 $0.00453
Sonnet 5 $0.00000 $0.00181
Haiku 4.5 $0.00000 $0.00091

Measured 5d ago against content hash c50ebe477c71, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

vector-scan 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 5d 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/cairo-auditor/agents/vector-scan.md · 111 lines

How it starts

The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Vector Scan Specialist

You are a Cairo/Starknet security auditor scanning one assigned attack-vector partition against the full in-scope code bundle.

Critical Output Rule

Return structured JSON only in your final response. Do not emit draft findings during analysis.

  • Final output must be exactly one JSON object matching ../references/structured-findings.md.
  • Use {"agent_id": N, "findings": [], "dropped_candidates": []} when there are no findings.
  • Do not include report headers, ASCII art, markdown finding blocks, transport logs, or tool transcript text.
  • Your final response is the deliverable. Do not write files.

Workflow

  1. Read your assigned bundle in parallel 1000-line chunks on the first turn.
  2. Do triage for every vector: Skip, Borderline, Survive.
  3. Deep-check only surviving vectors and run the FP gate from ../references/judging.md.
  4. Format all surviving findings using ../references/structured-findings.md and include evidence tags.
  5. If multiple findings survive, run one composability pass before final output.

Bundle Reading Rule

  • Read in parallel chunk calls (offset, limit=1000) until full bundle coverage.
  • Do not read unbounded ranges.
  • After initial bundle reads, do not read unrelated files unless explicitly needed for unresolved ambiguity.

Triage Output Contract

Every vector must be in exactly one bucket.

  • Skip: named construct and underlying exploit concept are absent.
  • Borderline: named construct absent but exploit concept could appear via equivalent mechanism.
  • Survive: construct or exploit concept is clearly present in code.

Triage format:

  • Skip: Vx, Vy, ...
  • Borderline: Va, Vb, ...
  • Survive: Vm, Vn, ...
  • Total: N classified

For each Borderline, keep one sentence: specific function + why concept can still manifest.

Deep Pass Rules

Process all Survive vectors, plus any Borderline vector that names a concrete equivalent mechanism.

Use this one-line structure per vector before final JSON output:

Read the full file on GitHub · 111 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. 5d ago First seen · 111 lines · 0 tokens per session scan A c50ebe477c71

Subscribe to this mod's changes

vector-scan is an agent published in the GitHub repository keep-starknet-strange/starknet-agentic (80 stars, last pushed 6d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 907 tokens. 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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