categorizing-bsky-accounts

categorizing-bsky-accounts is a skill for Claude Code, Codex from oaustegard/claude-skills. It costs 44 tokens per session (1,724 once invoked), scanned A, original, MIT.

A tool for analyzing and grouping Bluesky accounts by topic, using account biographies and posts to extract keywords. Bluesky is a social network for short posts, and the tool can work with follower lists, following lists, or supplied handles.

In plain words
What is it for?
Use it to discover topics in an account network, categorize followers or followed accounts, curate feeds, and analyze lists of Bluesky handles.
Why use it?
It turns a large set of accounts into shorter topic clues, making it easier to understand who they are and what subjects they discuss. The keyword extraction uses language and subject-specific stopword lists.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /home/claude/yake-venv/bin/python.

Good fit Use it to discover topics in an account network, categorize followers or followed accounts, curate feeds, and analyze lists of Bluesky handles.

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Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

Made for: Claude Code, Codex.

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 categorizing-bsky-accounts

README.md
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<a href="https://agentmods.dev/skills/oaustegard/claude-skills/categorizing-bsky-accounts"><img src="https://agentmods.dev/badge/skills/oaustegard/claude-skills/categorizing-bsky-accounts.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,724 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 $0.00044 $0.01724
Opus 5 $0.00022 $0.00862
Sonnet 5 $0.00009 $0.00345
Haiku 4.5 $0.00004 $0.00172

Measured 2d ago against content hash e5963f103df7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

categorizing-bsky-accounts 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 2d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/bluesky_analyzer.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

categorizing-bsky-accounts/SKILL.md · 238 lines

How it starts

The opening of the file, as written. The whole thing — 238 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Categorizing Bluesky Accounts

Fetch Bluesky account data and extract keywords for Claude to categorize by topic. The script compresses account context (bio + posts) into bio + keywords, then Claude performs intelligent categorization.

Prerequisites

Requires: extracting-keywords skill (provides YAKE venv + domain stopwords)

The analyzer delegates keyword extraction to the extracting-keywords skill, which provides:

  • Optimized YAKE installation with minimal dependencies
  • Domain-specific stopwords: English (574), AI/ML (1357), Life Sciences (1293)
  • Support for 34 languages

Core Workflow

When users request Bluesky account analysis:

  1. Ensure keyword extraction is set up - Invoke the extracting-keywords skill using the Skill tool to ensure YAKE venv exists (skip if already invoked in this session)

  2. Determine input mode based on user's request:

    • Following list → use --following handle
    • Followers → use --followers handle
    • List of handles → use --handles "h1,h2,h3"
    • File provided → use --file accounts.txt
  3. Configure parameters:

    • --accounts N - Number to analyze (default: 100, max: 100)
    • --posts N - Posts per account (default: 20, max: 100)
    • --stopwords [en|ai|ls] - Choose domain-specific stopwords:
      • en: English (general purpose)
      • ai: AI/ML domain (recommended for tech accounts)
      • ls: Life Sciences (for biomedical/research accounts)
    • --exclude "pattern1,pattern2" - Skip spam/bot accounts
  4. Run script - Outputs simple text format to stdout:

    @handle1.bsky.social (Display Name)
    Bio text here
    Keywords: keyword1, keyword2, keyword3
    
    @handle2.bsky.social (Another Name)
    Bio text here
    Keywords: keyword4, keyword5, keyword6
    
  5. Categorize accounts - Claude analyzes bio + keywords to categorize by topic

Quick Start

Analyze following list with AI/ML stopwords:

python scripts/bluesky_analyzer.py --following austegard.com --stopwords ai

Read the full file on GitHub · 238 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago Changed · -36 lines e5963f103df7
  2. 12d ago First seen · 274 lines · 44 tokens per session scan A 1e4cae7e9bb6

Subscribe to this mod's changes

categorizing-bsky-accounts is a skill published in the GitHub repository oaustegard/claude-skills (148 stars, last pushed 2d ago), licensed MIT. It adds 44 tokens to every session and 1,724 once invoked, about $0.0002 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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