Borrowing it
Nothing to install: this file belongs to sponge-b0b/Polaris. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/sponge-b0b/Polaris/main/.agents/skills/coding-standards/SKILL.mdgit clone --depth 1 https://github.com/sponge-b0b/PolarisWrote 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/sponge-b0b/polaris/coding-standards)<a href="https://agentmods.dev/skills/sponge-b0b/polaris/coding-standards"><img src="https://agentmods.dev/badge/skills/sponge-b0b/polaris/coding-standards/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/sponge-b0b/polaris/coding-standards"><img src="https://agentmods.dev/badge/skills/sponge-b0b/polaris/coding-standards.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 | $0.00081 | $0.04051 |
| Opus 5.5 | $0.00032 | $0.01620 |
| Sonnet 5.5 | $0.00016 | $0.00810 |
| Haiku 4.5 | $0.00008 | $0.00405 |
Grade A, and why
coding-standards 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 1mo 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 — 515 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Coding Standards
Apply these standards whenever creating, modifying, refactoring, fixing, or reviewing Python source code.
Optimize for correct, readable, maintainable Python with the minimum total complexity necessary.
Scope and Precedence
These rules apply to Python source and tests.
Before changing code:
- Read applicable repository instructions such as
AGENTS.md. - Inspect relevant code, callers, tests, and established patterns.
- Inspect repository configuration such as
pyproject.toml,ruff.toml, andmypy.ini. - Follow repository-configured Python, Ruff, Mypy, formatting, and testing rules over generic defaults in this skill.
- Follow authoritative ADRs and
docs/current/sources when a coding rule depends on project architecture or semantics.
Do not modify lint, formatting, typing, or test configuration merely to make code pass unless changing that policy is itself part of the task.
A direct user requirement or documented repository rule overrides a design preference here. Required correctness, security, data integrity, domain contracts, scoring semantics, and observability are not optional simplifications.
Polaris Non-Negotiables
Contract Boundaries
When changing domain, application, infrastructure, interface, persistence, runtime, or other contract boundaries, read:
docs/current/platform-architecture-0.2.0.md
and the current Spec, accepted ADR/design source, or domain contract that owns the concrete semantics being changed.
Follow current greenfield authority:
- inward-owned ports express the semantics Polaris requires rather than mirroring vendor APIs;
- vendor, ORM, driver, transport, and other replaceable implementation types stay behind their owning adapter boundary unless current authority explicitly makes the representation semantic;
- externally sourced facts are normalized into Polaris-owned contracts with their required identity, time, provenance, and authority meaning;
- application/domain contracts remain independent of incidental runtime or infrastructure mechanics.
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.
- 1mo ago Changed · -19 lines 34b494400b1a
- 1mo ago Changed 8e7b81573409
- 1mo ago Changed · +53 lines 42cb27d6a912
- 1mo ago First seen · 481 lines · 81 tokens per session scan A 25e824675a17
coding-standards is a skill published in the GitHub repository sponge-b0b/Polaris (4 stars, last pushed today), licensed Apache-2.0. It adds 81 tokens to every session and 4,051 once invoked, about $0.0003 per session on Opus 5.5. 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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