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 skills add 8Dionysus/aoa-skills --skill aoa-engineering-shapegit clone --depth 1 https://github.com/8Dionysus/aoa-skillsWrote 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/8dionysus/aoa-skills/aoa-engineering-shape)<a href="https://agentmods.dev/skills/8dionysus/aoa-skills/aoa-engineering-shape"><img src="https://agentmods.dev/badge/skills/8dionysus/aoa-skills/aoa-engineering-shape/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/8dionysus/aoa-skills/aoa-engineering-shape"><img src="https://agentmods.dev/badge/skills/8dionysus/aoa-skills/aoa-engineering-shape.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 | $0.00076 | $0.00769 |
| Opus 5 | $0.00038 | $0.00385 |
| Sonnet 5 | $0.00015 | $0.00154 |
| Haiku 4.5 | $0.00008 | $0.00077 |
Grade A, and why
aoa-engineering-shape 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 — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
aoa-engineering-shape
Intent
Choose one shaping lens and return the smallest target-bound responsibility boundary without installing an architecture framework by default.
Trigger boundary
Use this skill when:
- domain responsibilities are overloaded, stable rules are mixed with glue, or a concrete dependency leaks across a meaningful seam
Do not use this skill when:
- the real task is source authority, decision history, verification, an ordinary edit, or implementation after the boundary is already explicit
Inputs
- target system or code slice, target-specific owner surfaces, current responsibilities
- concrete ambiguity, repeated rule, or leaking dependency
Outputs
- exactly one typed mode result with boundary, interfaces, owner or unresolved owner edge, migration edge, verification need, unresolved question, and stop line
Procedure
-
Read
references/contract.yamland choose exactly one mode:Mode Select when Required procedure contextsMeanings, responsibilities, owners, or dual postures are overloaded. references/contexts.mdcoreA stable rule is mixed with loading, rendering, orchestration, or infrastructure. references/core.mdport-adapterA concrete database, API, filesystem, CLI, provider, or runtime detail leaks inward. references/port-adapter.md -
Read the selected reference completely. Do not load the other mode procedures merely because their vocabulary appears nearby.
-
Bind owner only from a declaration that governs the target slice. An unrelated authored surface, sibling route, recent file, or generated index cannot supply the target owner. Keep
owner: unresolvedwhen that binding is missing; never borrow a plausible owner. -
Execute only the selected procedure. If another shaping mode is materially necessary, finish the upstream result and hand its typed output to a later task-local DAG node instead of blending modes.
What ships with it
5 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.
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 · 88 lines · 76 tokens per session scan A fbf585d3f169
aoa-engineering-shape is a skill published in the GitHub repository 8Dionysus/aoa-skills (4 stars, last pushed 2d ago), licensed Apache-2.0. It adds 76 tokens to every session and 769 once invoked, about $0.0004 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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