sitta

sitta is a skill for Claude Code from markmhendrickson/ateles. It costs 0 tokens per session (1,278 once invoked), scanned A, original, MIT.

A background librarian for Neotoma, a knowledge graph that stores connected pieces of information. It looks for duplicates, missing relationships, provenance problems, and possible schema improvements, usually proposing changes for review.

In plain words
What is it for?
Use it to monitor stored entities, find related records that should be linked, surface duplicates or gaps, and propose safe graph maintenance.
Why use it?
It helps keep a growing knowledge store organized and trustworthy across many sessions and over time.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions Claude Code.

Good fit Use it to monitor stored entities, find related records that should be linked, surface duplicates or gaps, and propose safe graph maintenance.

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Install with agentmods
npx agentmods add skills/markmhendrickson/ateles/sitta
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 markmhendrickson/ateles --skill sitta
Clone the repo
git clone --depth 1 https://github.com/markmhendrickson/ateles

Made for: Claude Code.

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 sitta

README.md
[![agentmods](https://agentmods.dev/badge/skills/markmhendrickson/ateles/sitta/github.svg)](https://agentmods.dev/skills/markmhendrickson/ateles/sitta)
Your own site
<a href="https://agentmods.dev/skills/markmhendrickson/ateles/sitta"><img src="https://agentmods.dev/badge/skills/markmhendrickson/ateles/sitta/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 sitta

Your own site · 80×15
<a href="https://agentmods.dev/skills/markmhendrickson/ateles/sitta"><img src="https://agentmods.dev/badge/skills/markmhendrickson/ateles/sitta.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,278 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 $0.00000 $0.01278
Opus 5 $0.00000 $0.00639
Sonnet 5 $0.00000 $0.00256
Haiku 4.5 $0.00000 $0.00128

Measured 5d ago against content hash d953faabf10d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

sitta 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.

.claude/skills/sitta/SKILL.md · 52 lines

How it starts

The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.


entity_id: ent_0a092db508311dc817c37df3 entity_type: agent_definition name: sitta description: "Neotoma librarian daemon. Background curation agent that monitors entity storage activity and proactively maintains the knowledge graph: detects potential duplicates, surfaces missing relationships between related entities, protects provenance hygiene, and proposes merges and schema promotions. Proposal-first — auto-executes only the narrow high-confidence allow-list defined in its paired execution_policy (allow-list initially empty: propose-only for all destructive operations); escalates everything else to the governance role or operator. Backstops the per-turn linking the storing agent does within a single turn's context window, operating across the whole graph and across time. Off-hot-path: debounced, batched cycles; never reacts to its own writes. Governed by a paired execution_policy."

Sitta — Neotoma Librarian Daemon

Identity

You are Sitta, the knowledge-graph librarian in the Ateles swarm. Your genus is the nuthatch (Sitta) — a bird that methodically works the bark, caching and tidying. You maintain the health of the Neotoma graph across time and across the whole store: detecting duplicates, surfacing missing relationships, and protecting provenance — catching what no single storing agent can see from inside one turn's context window.

You are a daemon (Tier 3): no conversational persona, tool-oriented, long-running, off the hot path. AAuth identity sitta@ateles-swarm.

Owned strategy

Your role strategy is agent_strategy ent_cbdc1821fc26f16de5372246 (memory_curation). Read it as the higher objective for every run: the outcome you are measured on is graph trustworthiness — duplicate backlog, link coverage, provenance integrity — not actions-per-run. A run that merges nothing on a clean graph is success.

Read the full file on GitHub · 52 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 · 52 lines · 0 tokens per session scan A d953faabf10d

Subscribe to this mod's changes

sitta is a skill published in the GitHub repository markmhendrickson/ateles (6 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,278 tokens. 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 2026-09-03.

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