sync-horizon

sync-horizon is a skill for Claude Code, Codex from Incept5/eve-skillpacks. It costs 39 tokens per session (3,818 once invoked), scanned A, original, MIT.

A process for updating Eve skill packs from the latest changes in the Eve Horizon code repository. It checks plans, code changes, commits, and documentation to identify behavior that has actually shipped.

In plain words
What is it for?
Use it to review recent repository changes, identify completed features, and update related skills and reference documents.
Why use it?
It reduces the risk of documentation describing planned or outdated features instead of the current system.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions AGENTS.md.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is cd ../eve-horizon && git log --oneline <last_synced_commit>..HEAD.

Good fit Use it to review recent repository changes, identify completed features, and update related skills and reference documents.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/Incept5/eve-skillpacks
agentmods
npx agentmods add skills/incept5/eve-skillpacks/sync-horizon

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 sync-horizon

README.md
[![agentmods](https://agentmods.dev/badge/skills/incept5/eve-skillpacks/sync-horizon/github.svg)](https://agentmods.dev/skills/incept5/eve-skillpacks/sync-horizon)
Your own site
<a href="https://agentmods.dev/skills/incept5/eve-skillpacks/sync-horizon"><img src="https://agentmods.dev/badge/skills/incept5/eve-skillpacks/sync-horizon/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 sync-horizon

Your own site · 80×15
<a href="https://agentmods.dev/skills/incept5/eve-skillpacks/sync-horizon"><img src="https://agentmods.dev/badge/skills/incept5/eve-skillpacks/sync-horizon.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,818 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 $0.00039 $0.03818
Opus 5 $0.00019 $0.01909
Sonnet 5 $0.00008 $0.00764
Haiku 4.5 $0.00004 $0.00382

Measured 8d ago against content hash d10e9c031936, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

sync-horizon 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 8d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/check-state-today.sh), 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.

private-skills/sync-horizon/SKILL.md · 380 lines

How it starts

The opening of the file, as written. The whole thing — 380 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sync Horizon

Synchronize eve-skillpacks with the latest state of the eve-horizon repository.

Core Insight

System docs often lag behind implementation. Features ship via feat commits with plans marked "Implemented" — but docs/system/ may not update for weeks. This sync goes to the source: plans, code changes, and commit messages tell us what actually shipped. System docs are one signal among many, not the primary driver.

Prerequisites

  • The eve-horizon repo must be at ../eve-horizon (sibling directory)
  • .sync-state.json must exist in the repo root (create from template if missing)
  • .sync-map.json must exist in the repo root

Architecture: Orchestrator + Parallel Workers

You (the orchestrator) discover what shipped and dispatch focused workers. Each worker handles one update in isolation with its own context budget.

The orchestrator reads lightweight signals (commit log, plan headers, file stats, CLI module list). Workers read the heavy content (plan bodies, code diffs, source docs, target files).

Output Standards

  • Distill only shipped platform behavior. Plans marked Implemented/Complete describe shipped features.
  • Do not carry roadmap content into skillpacks. Ignore plans marked Proposed/Draft and sections like Planned (Not Implemented), What's next, or "current vs planned" framing.
  • Keep eve-work/eve-read-eve-docs/SKILL.md task-first: route by intent, load only the minimal reference files needed.
  • Keep reference docs scoped and actionable — curated distillations, not copies.

Workflow

Phase 1: Deep Discovery (orchestrator)

Read lightweight signals from multiple dimensions to understand what actually shipped.

1a. Commit log
cd ../eve-horizon && git log --oneline <last_synced_commit>..HEAD

Categorize commits:

  • feat: — new capabilities (primary interest)
  • fix: — bugfixes that may affect documented behavior
  • docs: — documentation changes (check if they describe already-shipped features)
  • chore: / refactor: — usually no skillpack impact, but note removals

Read the full file on GitHub · 380 lines

Files

What ships with it

1 file 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. 8d ago First seen · 380 lines · 39 tokens per session scan A d10e9c031936

Subscribe to this mod's changes

sync-horizon is a skill published in the GitHub repository Incept5/eve-skillpacks (0 stars, last pushed 2mo ago), licensed MIT. It adds 39 tokens to every session and 3,818 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 2026-08-31.

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