declared-and-present

A plugin fixture whose manifest declares a skill and whose corresponding SKILL.md file exists on disk. A manifest is the plugin’s configuration file.

In plain words
What is it for?
It is used to test plugin installation or validation when a manifest references a local skill directory.
Why use it?
It verifies that a declared skill is actually present where the plugin expects it.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add jdutton/vibe-agent-toolkit
agentmods
npx agentmods add plugins/jdutton/vibe-agent-toolkit/declared-and-present
Clone the repo
git clone --depth 1 https://github.com/jdutton/vibe-agent-toolkit

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

declared-and-present 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 yesterday.

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.

docs/research/fixtures/loader-semantics/declared-and-present/.claude-plugin/plugin.json · 7 lines

What it actually says

{
  "name": "declared-and-present",
  "version": "1.0.0",
  "description": "Control case: skill is declared in manifest and the SKILL.md exists on disk.",
  "skills": ["./skills/foo"]
}
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. yesterday First seen · 7 lines scan A 832cddf7efcc

Subscribe to this mod's changes

declared-and-present is a plugin published in the GitHub repository jdutton/vibe-agent-toolkit (2 stars, last pushed 5d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.