knowledge-sync

A coordination procedure for keeping information consistent across separate agent knowledge areas. It compares local information with shared checkpoints and records verified updates.

In plain words
What is it for?
Use it when several agents share knowledge, when namespaces are merged, or when a shared state needs to be checked and updated.
Why use it?
It helps detect when agents have conflicting or outdated information. It also leaves a checkpoint showing that the information was reconciled.

Skill for Claude CodeCodex

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 skills/apiliumcode/mayros/knowledge-sync
Any agent
npx skills add ApiliumCode/mayros --skill knowledge-sync
Clone the repo
git clone --depth 1 https://github.com/ApiliumCode/mayros

Made for: Claude Code, Codex.

Per session 11 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 235 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 $0.00011 $0.00235
Opus 5 $0.00005 $0.00118
Sonnet 5 $0.00002 $0.00047
Haiku 4.5 $0.00001 $0.00023

Measured 2d ago against content hash 4a4adf80dab6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

knowledge-sync 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 3 executable files (skill.test.ts, skill.ts, types.ts), 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.

skills/examples/knowledge-sync/SKILL.md · 39 lines

What it actually says

knowledge-sync

Synchronize knowledge across agent namespaces with provable consistency checkpoints.

When to Use

Use when coordinating knowledge between multiple agents or merging namespace data.

Instructions

  1. Query global sync checkpoints to find the latest state
  2. Compare local namespace state against the checkpoint
  3. Assert sync:conflict for any detected inconsistencies
  4. After resolution, assert sync:checkpoint with proof to create a new verified state
  5. Remember sync metadata for future reconciliation
Files

What ships with it

8 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 First seen · 39 lines · 11 tokens per session scan A 4a4adf80dab6

Subscribe to this mod's changes

knowledge-sync is a skill published in the GitHub repository ApiliumCode/mayros (12 stars, last pushed 1mo ago), licensed MIT. It adds 11 tokens to every session and 235 once invoked, about $0.0001 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.