modsearch AGENTS.md

Project instructions for modsearch, a command-line tool that turns web searches and page fetches into structured evidence for AI agents. It describes the tool's engines, configuration, code layout, and skills.

In plain words
What is it for?
Use it when developing modsearch, adding or changing search engines, configuring automatic search, or working on its command-line behaviour.
Why use it?
It helps an agent understand how modsearch searches, fetches pages, selects search engines, and returns validated JSON results.

Instructions file for CodexOpenCode

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 instructions/liustack/modsearch/agents-md
Clone the repo
git clone --depth 1 https://github.com/liustack/modsearch

Made for: Codex, OpenCode.

Per session 1,878 This file is loaded in full into every session.
When invoked 1,878 The same file — it is already loaded in full.
Security scan A 1 finding. 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 $0.01878 $0.01878
Opus 5 $0.00939 $0.00939
Sonnet 5 $0.00376 $0.00376
Haiku 4.5 $0.00188 $0.00188

Measured 2d ago against content hash 709f0a4af067, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

modsearch AGENTS.md scanned grade A with 1 finding 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.

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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

- **Hidden Windows children**: the core and standalone dsh plugin each own one child-process wrapper that forces `windowsHide: true`. A contract test rejects direct `child_process` access anywhere else in shipped code.
AGENTS.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Project Overview (for AI Agent)

Goal

Provide the modsearch CLI tool that turns search queries and page URLs into structured web evidence for LLM agent workflows.

Technical Approach

  • Pluggable engines — the engine interface (buildInvocation + parseOutput for subprocess engines, or execute for in-process ones) keeps each engine contained to one file, so adding or swapping one touches nothing else. Antigravity CLI (agy) is the preferred search engine when it is available.
  • Two modes, one CLI: -q searches the web, -u fetches a single page (absorbed from the retired modfetch project). -u plus -q fetches with an answer focus.
  • Schema-enforced JSON output: subprocess engines are invoked with --json-schema, so the structured result comes back guaranteed, no markdown scraping.
  • Selectable automatic chain: every engine participates by default. engines.<name>.enabled: false excludes one from automatic search, fetch, or X routing. An explicit --engine still forces a one-off run. doctor reports readiness and enabled state separately.
  • Hidden Windows children: the core and standalone dsh plugin each own one child-process wrapper that forces windowsHide: true. A contract test rejects direct child_process access anywhere else in shipped code.
  • Single responsibility: this project handles the live web (search + fetch). Image parsing lives in modlens.
  • X handling: X-flavored -q queries route entirely to Grok Build (grok-cli) when it is installed and signed in, spending no agy quota. When Grok is missing or fails, a web engine answers instead, and that entry is marked status: "degraded" with source: "web" and requestedSource: "x" so the second-hand nature is explicit, never silent. On a --source web,x run with X unreachable, the X slot returns a separate status: "unavailable" entry rather than vanishing. An explicit -e/--engine is a hard force: exactly that engine, no fallback, an error if it cannot do the job. One shared output contract for every engine.

Read the full file on GitHub · 117 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. 2d ago First seen · 117 lines · 1,878 tokens per session scan A 709f0a4af067

Subscribe to this mod's changes

modsearch AGENTS.md is an instructions file published in the GitHub repository liustack/modsearch (333 stars, last pushed 5d ago), licensed MIT. It adds 1,878 tokens to every session, about $0.0094 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.