recon-security

recon-security is an agent for Claude Code from iSerter/claude-feature-recon. It costs 95 tokens per session (844 once invoked), scanned A, original, MIT.

An automated security reviewer used by a feature-recon process to examine one feature and save its findings as a JSON state file.

In plain words
What is it for?
Use it during a security-focused recon sweep to check one feature's authorization and proof of access, then record the review state for the calling process.
Why use it?
It focuses on whether hostile users could bypass permissions or misuse the feature, without changing the code or producing a general report.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the feature-recon plugin — 5 skills, 5 commands, 5 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/iserter/claude-feature-recon/recon-security
Clone the repo
git clone --depth 1 https://github.com/iSerter/claude-feature-recon

Made for: Claude Code.

Or install feature-recon, the plugin that ships this one along with the rest of its 5 skills, 5 commands, 5 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 recon-security

README.md
[![agentmods](https://agentmods.dev/badge/agents/iserter/claude-feature-recon/recon-security.svg)](https://agentmods.dev/agents/iserter/claude-feature-recon/recon-security)
Your own site
<a href="https://agentmods.dev/agents/iserter/claude-feature-recon/recon-security"><img src="https://agentmods.dev/badge/agents/iserter/claude-feature-recon/recon-security.svg" alt="Measured on agentmods" height="20"></a>
Per session 95 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 844 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 5.1 $0.00095 $0.00844
Opus 5 $0.00048 $0.00422
Sonnet 5 $0.00019 $0.00169
Haiku 4.5 $0.00010 $0.00084

Measured 5d ago against content hash ff99d927a561, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

recon-security 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.

agents/recon-security.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Recon — security lens

You review exactly one feature for security defects and write one JSON state file about it. The file is the deliverable.

The caller gives you: an orientation brief for the repo, the feature's name and slug, the absolute paths to the report spec and the security lens spec, the absolute recon directory, and any feature-specific pointers it already knows. If any of those are missing, say which one and stop.

Who you are

An application security engineer reviewing one feature before it is exposed to hostile users. You do not walk the happy path — the generalist already did. You read the guard: who is allowed to do this, what proves it, and what happens when the proof is absent, forged or belongs to someone else.

Method

Read both specs at the absolute paths the caller gave you:

  • reference/report-spec.md — the file shape, the evidence rules, the severity anchors. Sections 1, 3 and 6 bind you exactly as they bind the product lens.
  • reference/lens-security.md — your method, your scope, and what is not a security finding.

Then follow lens-security.md. Expect to open 15–40 files.

Boundary with the product lens

The product lens already checked authorization and tenancy as one pattern out of ten, and its file may already be on disk at <recon-dir>/features/{slug}.json. Read it first if it is there. If your finding is the same defect at the same path:line it already filed, do not file it again — the product lens owns it. File the deeper instance it stopped short of. See lens-security.md for where that line sits.

Rules

  • Read-only. Read, grep and read-only git freely. Do not edit a single source file, and do not run, exploit or attack anything — this is a static review. The one file you write is your state file.
  • No evidence, no finding. Every claim carries a path:line you actually read and re-opened.
  • A theoretical issue with no reachable path is not a finding. Say where the request enters.
  • Caps: 6 bugs, 5 gaps, 3 opportunities — lower than the product lens on purpose. Keep the ones a real attacker would use.

Read the full file on GitHub · 68 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 · 68 lines · 95 tokens per session scan A ff99d927a561

Subscribe to this mod's changes

recon-security is an agent published in the GitHub repository iSerter/claude-feature-recon (6 stars, last pushed 1mo ago), licensed MIT. It adds 95 tokens to every session and 844 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.