blindspot-pass

blindspot-pass is a skill for Claude Code from Neeeophytee/finding-unknowns-skills. It costs 55 tokens per session (417 once invoked), scanned A, original, MIT.

A preliminary review that surfaces things a user may not know to ask about before work begins. It focuses on unfamiliar codebases, technical areas, or domains.

In plain words
What is it for?
Use it when entering an unfamiliar project or field, or when explicitly asking for an unknown-unknowns review.
Why use it?
It reveals hidden assumptions, risks, and missing questions early, before they cause problems during implementation.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the finding-unknowns plugin — 13 skills shipped together

Good fit Use it when entering an unfamiliar project or field, or when explicitly asking for an unknown-unknowns review.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/neeeophytee/finding-unknowns-skills/blindspot-pass
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.

Any agent
npx skills add Neeeophytee/finding-unknowns-skills --skill blindspot-pass
Clone the repo
git clone --depth 1 https://github.com/Neeeophytee/finding-unknowns-skills

Made for: Claude Code.

Or install finding-unknowns, the plugin that ships this one along with the rest of its 13 skills.

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 blindspot-pass

README.md
[![agentmods](https://agentmods.dev/badge/skills/neeeophytee/finding-unknowns-skills/blindspot-pass/github.svg)](https://agentmods.dev/skills/neeeophytee/finding-unknowns-skills/blindspot-pass)
Your own site
<a href="https://agentmods.dev/skills/neeeophytee/finding-unknowns-skills/blindspot-pass"><img src="https://agentmods.dev/badge/skills/neeeophytee/finding-unknowns-skills/blindspot-pass/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.

agentmods 80×15 button for blindspot-pass

Your own site · 80×15
<a href="https://agentmods.dev/skills/neeeophytee/finding-unknowns-skills/blindspot-pass"><img src="https://agentmods.dev/badge/skills/neeeophytee/finding-unknowns-skills/blindspot-pass.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 417 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00055 $0.00417
Opus 5 $0.00028 $0.00209
Sonnet 5 $0.00011 $0.00083
Haiku 4.5 $0.00006 $0.00042

Measured 10d ago against content hash a0ae24b4d256, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

blindspot-pass 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 10d 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/blindspot-pass/SKILL.md · 26 lines

What it actually says

Blindspot pass

The user is about to work in territory they don't know well. Your job is not to do the task yet. Your job is to show them what they don't know they don't know, so their next prompt is better.

Steps

  1. Ask (or infer from context) two things: what they're trying to do, and what their experience level is with this specific area. Their starting point changes everything.
  2. Explore the relevant territory yourself: the module, its history, its conventions, prior art in the repo, and (if the domain is external) what practitioners consider table stakes.
  3. Report back in four sections:
    • Landmines — the mistakes someone new here typically makes, and any repo-specific potholes (deprecated paths, misleading names, half-migrated patterns).
    • Hidden context — decisions already made that constrain the work (why the code is shaped this way, invariants that must hold).
    • What good looks like — 2-3 examples of the pattern done well, from this repo or elsewhere, so they can calibrate quality.
    • Questions you should be asking — the 3-5 questions an expert would ask before starting, with your best guess at each answer.
  4. End with a rewritten version of their original request that incorporates what you found, so they can see the difference between their map and the territory.

Guardrails

  • Do not start implementing. This skill ends at understanding.
  • Prioritize unknowns that would change the architecture or the approach over trivia.
  • If the area turns out to be simpler than the user feared, say so plainly. "You have no significant blindspots here" is a valid and valuable result.
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. 10d ago First seen · 26 lines · 55 tokens per session scan A a0ae24b4d256

Subscribe to this mod's changes

blindspot-pass is a skill published in the GitHub repository Neeeophytee/finding-unknowns-skills (327 stars, last pushed today), licensed MIT. It adds 55 tokens to every session and 417 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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