Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/mawildoer/atopile-agent-skillnpx agentmods add skills/mawildoer/atopile-agent-skill/layout-relinkingWrote 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/mawildoer/atopile-agent-skill/layout-relinking)<a href="https://agentmods.dev/skills/mawildoer/atopile-agent-skill/layout-relinking"><img src="https://agentmods.dev/badge/skills/mawildoer/atopile-agent-skill/layout-relinking/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.
<a href="https://agentmods.dev/skills/mawildoer/atopile-agent-skill/layout-relinking"><img src="https://agentmods.dev/badge/skills/mawildoer/atopile-agent-skill/layout-relinking.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00061 | $0.00899 |
| Opus 5 | $0.00030 | $0.00449 |
| Sonnet 5 | $0.00012 | $0.00180 |
| Haiku 4.5 | $0.00006 | $0.00090 |
Grade A, and why
layout-relinking 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 10d 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 — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Layout Relinking
When you rename a component in .ato code, its atopile_address in the .kicad_pcb becomes stale. On the next build, atopile can no longer match the placed footprint to the renamed component, so the component loses its placement (moved to origin, unrouted).
Critical: relink BEFORE building. If you build with stale addresses, atopile orphans the old placements and creates new unplaced footprints. Relinking after that means recovering from backups.
The Underlying Concept
Each footprint in the .kicad_pcb carries an atopile_address property — the dot-path of instance names from the build entry point down to that component. If Board has charger = new BQ25756Charger and BQ25756Charger has _richg = new Resistor, the address is charger._richg. Renaming any instance in that chain changes the address; relinking rewrites the stored address to match the new path so the placement is preserved.
Helper Scripts
This workflow relies on two small scripts that operate on the .kicad_pcb. Many projects vendor them under tools/; if yours doesn't, they're trivial to write (parse the s-expression / KiCad file, read or rewrite the atopile_address property on each footprint):
- list-addresses — print every
atopile_addressin a.kicad_pcb(optionally with the footprint each maps to). - rename-address — rewrite one address prefix to another. Should be prefix-aware: renaming a parent catches all children automatically.
The commands below assume tools/layout-list-addresses.py and tools/layout-rename-address.py. Substitute your project's equivalents.
Workflow
-
Make your .ato changes (renames, submodule extraction, etc.) — do NOT build yet.
-
Examine what changed:
git diff -- "*.ato" -
List current PCB addresses:
python tools/layout-list-addresses.py <pcb_file> -
Figure out the mapping. Construct new paths from the module hierarchy in the
.atosource. The address path is the chain of instance names from the build entry point down.
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.
- 10d ago First seen · 74 lines · 61 tokens per session scan A abf81d78fa8c
layout-relinking is a skill published in the GitHub repository mawildoer/atopile-agent-skill (10 stars, last pushed 2mo ago), licensed MIT. It adds 61 tokens to every session and 899 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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