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aio-jev-hint

aio-jev-hint is a skill for Claude Code from aiocean/claude-plugins. It costs 242 tokens per session (2,211 once invoked), scanned A, original, MIT.

A prompt hook that checks each user request against a JSON list of hints using a language model, then adds the matching hints to the agent's context. The hints can refer to skills, tools, project rules, dashboards, or reminders.

In plain words
What is it for?
It helps build a catalog of conditional reminders and connect that catalog to a UserPromptSubmit hook that injects matching context.
Why use it?
It surfaces relevant instructions without requiring the user or agent to remember to ask for them. Project-specific hint files can override global entries with the same name.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: reads .claude/ paths.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the aio-jev-hint plugin — 1 skill shipped together

not rated 4repo 29d ago A scan 242 tokens original MIT

Good fit It helps build a catalog of conditional reminders and connect that catalog to a UserPromptSubmit hook that injects matching context.

Compare 6 skills from other repositories ↓
View source ↗ aiocean/claude-plugins
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add aiocean/claude-plugins
Claude Code
/plugin install aio-jev-hint

Made for: Claude Code.

Or install aio-jev-hint, the plugin that ships this one along with the rest of its 1 skill.

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 aio-jev-hint

README.md
[![agentmods](https://agentmods.dev/badge/skills/aiocean/claude-plugins/aio-jev-hint/github.svg)](https://agentmods.dev/skills/aiocean/claude-plugins/aio-jev-hint)
Your own site
<a href="https://agentmods.dev/skills/aiocean/claude-plugins/aio-jev-hint"><img src="https://agentmods.dev/badge/skills/aiocean/claude-plugins/aio-jev-hint/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 aio-jev-hint

Your own site · 80×15
<a href="https://agentmods.dev/skills/aiocean/claude-plugins/aio-jev-hint"><img src="https://agentmods.dev/badge/skills/aiocean/claude-plugins/aio-jev-hint.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 242 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,211 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 $0.00242 $0.02211
Opus 5.5 $0.00097 $0.00884
Sonnet 5.5 $0.00048 $0.00442
Haiku 4.5 $0.00024 $0.00221

Measured 28d ago against content hash c2d6132f98a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

aio-jev-hint 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 28d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (reference/hook-template.mjs), 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.

plugins/aio-jev-hint/skills/aio-jev-hint/SKILL.md · 119 lines

How it starts

The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.

aio-jev-hint — hint-injection hooks with an LLM classifier

The pattern

Two pieces, one job: surface the right hint at the right moment without the user asking. The catalog is a generic hint list — nothing ties it to any one kind of target. An entry can point at a skill, an MCP server, a project rule, a dashboard, or a plain reminder; the hook doesn't know or care which.

  1. .jev-hint — a JSON array of {name, useWhen, context} entries. Global at ~/.claude/.jev-hint, optionally overridden per-project by a .jev-hint at the repo root (nearest-ancestor lookup, same resolution rule as .git). Project entries win name collisions.
  2. A UserPromptSubmit hook — on every prompt, batches all catalog entries into one LLM call (experimental_evaluate from the ai SDK, model typesafe-ai/jev) asking "does this apply?" per entry, then injects the context of every entry that clears a confidence threshold as additionalContext.

Full runnable template: ${CLAUDE_PLUGIN_ROOT}/skills/aio-jev-hint/reference/hook-template.mjs. Example catalog: ${CLAUDE_PLUGIN_ROOT}/skills/aio-jev-hint/reference/example.jev-hint.json.

Writing the .jev-hint catalog

Field Required Purpose
name yes Stable unique key. Used for dedup (project overrides global) and shows up in logs — pick something that identifies the target, whatever kind of target it is: a skill's slash command, an MCP server name, a rule label.
useWhen yes This is what the LLM actually scores against the prompt. Get this wrong and every other field is moot.
context yes Injected verbatim when matched — a slash command, an MCP server blurb, a dashboard URL, a project rule, a plain reminder sentence: whatever the target needs. Multiple matches get joined into one line, so keep it short.

useWhen: before/after from real tuning

The first version of this catalog copied each entry's full SKILL.md description verbatim — second-person, keyword-dense, built for a different discovery mechanism:

Read the full file on GitHub · 119 lines

Files

What ships with it

2 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. 28d ago First seen · 119 lines · 242 tokens per session scan A c2d6132f98a4

Subscribe to this mod's changes

aio-jev-hint is a skill published in the GitHub repository aiocean/claude-plugins (4 stars, last pushed 29d ago), licensed MIT. It adds 242 tokens to every session and 2,211 once invoked, about $0.0010 per session on Opus 5.5. 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 2026-09-19.

Building agentsMemory and contextai-assistantai-codinganthropicclaudecli-tools
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