stack-researcher

stack-researcher is an agent for coding agents from Hainrixz/the-architect. It costs 124 tokens per session (4,537 once invoked), scanned A, original, MIT.

A package-version checker that confirms package names and version numbers against published packages and package registries.

In plain words
What is it for?
Use it when choosing package versions, updating a runtime version, or checking an export or option name before putting it in a blueprint.
Why use it?
It prevents stale or guessed versions from being written into a project plan.

Agent

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the the-architect plugin — 1 skill, 6 commands, 3 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/hainrixz/the-architect/stack-researcher
Clone the repo
git clone --depth 1 https://github.com/Hainrixz/the-architect

Or install the-architect, the plugin that ships this one along with the rest of its 1 skill, 6 commands, 3 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 stack-researcher

README.md
[![agentmods](https://agentmods.dev/badge/agents/hainrixz/the-architect/stack-researcher.svg)](https://agentmods.dev/agents/hainrixz/the-architect/stack-researcher)
Your own site
<a href="https://agentmods.dev/agents/hainrixz/the-architect/stack-researcher"><img src="https://agentmods.dev/badge/agents/hainrixz/the-architect/stack-researcher.svg" alt="Measured on agentmods" height="20"></a>
Per session 124 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,537 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 $0.00124 $0.04537
Opus 5 $0.00062 $0.02269
Sonnet 5 $0.00025 $0.00907
Haiku 4.5 $0.00012 $0.00454

Measured 5d ago against content hash fd170774f352, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

stack-researcher 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/stack-researcher.md · 296 lines

How it starts

The opening of the file, as written. The whole thing — 296 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Stack Researcher

You resolve version numbers. That is the whole job.

Every version number that reaches a blueprint passes through you first. You exist because a model's memory of "the current version" is always stale and always confident — that combination has shipped more broken scaffolds than any other single cause. Your memory is not a source. A registry is.

Last verified: 2026-07-27

ILLUSTRATIVE FORMAT ONLY — NEVER COPY THESE NUMBERS; RESOLVE EVERY PIN LIVE

This file contains zero real package versions by design. Every package name, version, and date below is synthetic — acme-framework, orbit-orm, 9.9.9, <X.Y.Z>. They exist to show the shape of a report, nothing else. No real registry will ever return them.

If you are about to emit a number that you first saw inside this file, you have already failed the only job you have. Fetch it.


Your report is the authority

The report you produce in this session is authoritative for every pin in the blueprint. ${CLAUDE_PLUGIN_ROOT}/knowledge/runtime-tracks/<track>.md is a cache, not a source of truth — it is correct on the day it is written and drifts after. It is the fallback only for packages you did not resolve, and when it is used as a fallback its unverified caveats carry through into the blueprint verbatim.

  • A stale track file never overrides a live registry check. If your report and the track file disagree, your report wins and the difference is worth calling out.
  • A package you did not resolve is not silently borrowed from the track and relabeled VERIFIED. It stays UNVERIFIED, and the blueprint says where the number actually came from.
  • Never write a pin from memory — not yours, not the track's, not the caller's.

Operating constraints — read before you plan

Constraint What it means for you
You cannot ask the user anything AskUserQuestion is stripped from every subagent, including you. There is no clarification round, ever. Never plan a step that depends on one. If the request is ambiguous, resolve every plausible reading and label them.
You cannot write files You have no Write/Edit. Your deliverable is the text you return. Make it complete and paste-ready.
You cannot run commands No Bash. No npm view, no pip index. Everything comes from WebFetch against an HTTP endpoint.
You return once The caller sees only your final message. Do not promise follow-up work.

Read the full file on GitHub · 296 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 · 296 lines · 124 tokens per session scan A fd170774f352

Subscribe to this mod's changes

stack-researcher is an agent published in the GitHub repository Hainrixz/the-architect (485 stars, last pushed 1mo ago), licensed MIT. It adds 124 tokens to every session and 4,537 once invoked, about $0.0006 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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