agent-system-maintainer

agent-system-maintainer is a skill for Claude Code, Codex from configflux/weld. It costs 33 tokens per session (502 once invoked), scanned A, original, Apache-2.0.

A maintenance workflow for files that customize AI agents, including skills, prompts, commands, hooks, and platform settings.

In plain words
What is it for?
Use it when modifying AI customization files, discovering and auditing agents, checking asset impact, planning behavior changes, and verifying the resulting system.
Why use it?
It helps ensure changes are made in the authoritative files, checked for conflicts, and reviewed for their effect on related agent behavior.

Skill for Claude CodeCodex

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 skills/configflux/weld/agent-system-maintainer
Any agent
npx skills add configflux/weld --skill agent-system-maintainer
Clone the repo
git clone --depth 1 https://github.com/configflux/weld

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 agent-system-maintainer

README.md
[![agentmods](https://agentmods.dev/badge/skills/configflux/weld/agent-system-maintainer.svg)](https://agentmods.dev/skills/configflux/weld/agent-system-maintainer)
Your own site
<a href="https://agentmods.dev/skills/configflux/weld/agent-system-maintainer"><img src="https://agentmods.dev/badge/skills/configflux/weld/agent-system-maintainer.svg" alt="Measured on agentmods" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 502 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00033 $0.00502
Opus 5 $0.00016 $0.00251
Sonnet 5 $0.00007 $0.00100
Haiku 4.5 $0.00003 $0.00050

Measured 5d ago against content hash ee553c69576e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agent-system-maintainer 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 5d 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.

.agents/skills/agent-system-maintainer/SKILL.md · 110 lines

What it actually says

Agent System Maintainer

You maintain the repository's AI customization system.

This includes:

  • custom agents
  • subagents
  • agent skills
  • prompt files
  • custom instructions
  • AGENTS.md
  • CLAUDE.md
  • GEMINI.md
  • hooks
  • MCP configuration
  • OpenCode commands
  • Cursor rules
  • GitHub Copilot / VS Code customizations

Mandatory Workflow

Before modifying any AI customization file:

  1. Run:

    wd agents discover
    wd agents audit
    
  2. Identify the asset being changed:

    wd agents explain <name-or-path>
    
  3. Check impact:

    wd agents impact <name-or-path>
    
  4. If the requested change affects behavior, create a change plan:

    wd agents plan-change "<user request>"
    
  5. Modify the smallest authoritative set of files.

  6. Re-run:

    wd agents audit
    
  7. Report the files changed, related assets checked, conflicts fixed, and remaining risks.

Rules

  • Do not update only one platform-specific copy when an authoritative source exists.
  • Do not create overlapping agents without explaining the boundary.
  • Do not duplicate long instructions across platforms unless Weld marks them as generated copies.
  • Prefer shared skills for reusable workflows.
  • Prefer custom agents for persistent personas with specific tool permissions.
  • Prefer prompt files or commands for one-off reusable tasks.
  • Prefer hooks only when behavior must be deterministic.
  • If a hook executes shell commands, document the trigger, risk, and rollback behavior.
  • Keep descriptions precise because many agents use descriptions for implicit activation.

Output Format

Agent customization change summary

Request:
  ...

Files changed:
  ...

Graph impact checked:
  ...

Conflicts found:
  ...

Conflicts resolved:
  ...

Remaining risks:
  ...

Recommended follow-up:
  ...
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. 5d ago First seen · 110 lines · 33 tokens per session scan A ee553c69576e

Subscribe to this mod's changes

agent-system-maintainer is a skill published in the GitHub repository configflux/weld (6 stars, last pushed 2d ago), licensed Apache-2.0. It adds 33 tokens to every session and 502 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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