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.
npx agentmods add skills/archastro/archagents/author-agentnpx skills add ArchAstro/archagents --skill author-agentgit clone --depth 1 https://github.com/ArchAstro/archagentsWrote 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.
[](https://agentmods.dev/skills/archastro/archagents/author-agent)<a href="https://agentmods.dev/skills/archastro/archagents/author-agent"><img src="https://agentmods.dev/badge/skills/archastro/archagents/author-agent.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00070 | $0.01922 |
| Opus 5 | $0.00035 | $0.00961 |
| Sonnet 5 | $0.00014 | $0.00384 |
| Haiku 4.5 | $0.00007 | $0.00192 |
Grade A, and why
author-agent 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 3d 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.
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.
How it starts
The opening of the file, as written. The whole thing — 193 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ArchAstro Agent Authoring
Create or update the config files for a config-driven ArchAstro agent before deployment.
This skill assumes the ArchAgent CLI is already installed and authenticated. Use the /archagents:install and /archagents:auth commands in this same plugin instead of trying to install or authenticate the CLI manually inside this skill.
Always Start with State
Every invocation must begin by understanding the current project state:
archagent auth status
If the user is in a repo, inspect whether a configs/ directory already exists and whether the agent already has Script or AgentTemplate files.
Routing
Local config directory not initialized
If the user doesn't have a configs/ directory set up yet, route to the manage-configs skill first. That skill owns archagent init --enable-configs, local file layout, and the sync/deploy workflow.
User wants to author or modify agent configs
-
Start from CLI-backed templates, not memory:
- For new config objects, use:
archagent describe configsample <Kind> - For Script configs, always use:
The script docs are the live source of truth. Do not invent or paraphrase the language from memory.archagent describe scriptdocs archagent describe configsample Script
- For new config objects, use:
-
Use the standard config-driven model:
- Script logic lives in
kind: Scriptconfigs. - Agent behavior lives in an
AgentTemplate. - Custom tools should use
kind: custom,handler_type: script, andconfig_refpointing at Script configs. - MCP server tools should use the builtin
mcp_servertool withbuiltin_tool_config.mcp_server_reforbuiltin_tool_config.integration_id. Do not putkind: MCPServerdirectly in the agent'stools:list. - When creating configs outside a project directory, use
-fto read from a file:archagent create config -k AgentTemplate -f configs/agents/my-agent.yaml
- Script logic lives in
-
Validate early:
archagent validate config -k <Kind> -f <path>Run validation before deploy whenever the user changes Script or template files.
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.
- 3d ago First seen · 193 lines · 70 tokens per session scan A 3a07b6a4faf2
author-agent is a skill published in the GitHub repository ArchAstro/archagents (5 stars, last pushed 17d ago), licensed MIT. It adds 70 tokens to every session and 1,922 once invoked, about $0.0003 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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