lens-security

lens-security is an agent for coding agents from tednaleid/claude-plugins. It costs 60 tokens per session (1,079 once invoked), scanned A, original, no licence file.

A code-review check for security problems in a change. It examines trust boundaries, injection risks, login and permission changes, secret handling, and resource-exhaustion risks, then tests suspected bugs when possible.

In plain words
What is it for?
Use it when reviewing a branch that handles user input, authentication, authorization, secrets, or external resources.
Why use it?
It helps find security regressions that ordinary functional review may miss.

Agent

Part of the review-branch plugin — 3 skills, 4 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/tednaleid/claude-plugins/lens-security
Clone the repo
git clone --depth 1 https://github.com/tednaleid/claude-plugins

Or install review-branch, the plugin that ships this one along with the rest of its 3 skills, 4 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 lens-security

README.md
[![agentmods](https://agentmods.dev/badge/agents/tednaleid/claude-plugins/lens-security.svg)](https://agentmods.dev/agents/tednaleid/claude-plugins/lens-security)
Your own site
<a href="https://agentmods.dev/agents/tednaleid/claude-plugins/lens-security"><img src="https://agentmods.dev/badge/agents/tednaleid/claude-plugins/lens-security.svg" alt="Measured on agentmods" height="20"></a>
Per session 60 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,079 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 3 findings. Scan, not verified.
Origin unknown 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 $0.00060 $0.01079
Opus 5 $0.00030 $0.00540
Sonnet 5 $0.00012 $0.00216
Haiku 4.5 $0.00006 $0.00108

Measured 3d ago against content hash 0e3f8120447b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

lens-security scanned grade A with 3 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 3d 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.

Unrestricted tool accesslowExcessive agency

A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.

- Hypothetical attacks with no plausible trigger ("if the attacker can already run arbitrary code on the server").

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

4. **Argv vs shell.** `git worktree add <user-ref>` accepts a ref starting with `-` as a flag (`--detach`-style attack). Cheap defense: `--` separator before user-controlled args. Same shape: `rm`, `find`, `curl`, `ssh`.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

3. **Injection.** SQL (any string interpolation into a query), command (`subprocess.run(cmd, shell=True)` with untrusted input), XSS (HTML/template output not escaped), header injection, log injection, LDAP, NoSQL.
plugins/review-branch/agents/lens-security.md · 54 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 3d ago First seen · 54 lines · 60 tokens per session scan A 0e3f8120447b

Subscribe to this mod's changes

lens-security is an agent published in the GitHub repository tednaleid/claude-plugins (2 stars, last pushed 3d ago), with no licence file. It adds 60 tokens to every session and 1,079 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 3 findings (unrestricted tool access, makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.