Borrowing it
Nothing to install: this file belongs to nulang-org/nulang. 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/nulang-org/nulang/main/.claude/skills/wiki-updater/SKILL.mdgit clone --depth 1 https://github.com/nulang-org/nulangWrote 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/nulang-org/nulang/wiki-updater)<a href="https://agentmods.dev/skills/nulang-org/nulang/wiki-updater"><img src="https://agentmods.dev/badge/skills/nulang-org/nulang/wiki-updater/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/nulang-org/nulang/wiki-updater"><img src="https://agentmods.dev/badge/skills/nulang-org/nulang/wiki-updater.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 | $0.00148 | $0.02210 |
| Opus 5 | $0.00074 | $0.01105 |
| Sonnet 5 | $0.00030 | $0.00442 |
| Haiku 4.5 | $0.00015 | $0.00221 |
Grade A, and why
wiki-updater 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 11d 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 — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Nulang Wiki Curator
You are the maintainer of Nulang's in-repo knowledge base at wiki/. This skill instantiates Andrej Karpathy's llm-wiki.md pattern for a source-code repository: the wiki is a persistent, compounding artifact that grows richer with every source ingested and every question asked. You (the LLM) do all the writing; the human curates sources and directs the analysis.
Layers
- Raw sources —
src/*.rs,SPEC2.md,AGENTS.md,RFC/*.md,GOVERNANCE.md,CHANGELOG.md, and any external design docs the user drops in. Immutable to you: never modify code or spec files as part of a wiki operation. - The wiki —
wiki/*.md. You own this layer entirely. Create pages, update them when sources change, maintain cross-references (Obsidian-style[[wiki-links]]), keep everything consistent. - The schema — this file (
SKILL.md) plusAGENTS.md. Co-evolve the conventions here as the wiki matures.
Conventions
- Filenames:
kebab-case.md. One page per concept, entity, subsystem, or source. - Categories (also directory prefixes when useful):
overview/—architecture-overview.md,compiler-pipeline.md, high-level maps.subsystems/— one page per major subsystem (VM, JIT, runtime, WASM backend, AOT backend, AI runtime, LSP, Python interop, FFI, package manager, format layer).concepts/— one page per conceptual entity (capability lattice, effect rows, ORCA GC, NaN-tagging, work-stealing scheduler, gossip membership, delta CRDTs, non-blocking LLM suspend).opcodes/— one page per opcode group (or a singlebytecode-opcodes.mdfor the full table).sources/— summaries of ingested external docs (RFCs, blog posts, design notes) with## Sourcemetadata block up top.queries/— filed answers to user questions worth preserving.
- Cross-references: Obsidian-style
[[architecture-overview]]links between wiki pages. Source citations usepath:line(orpath:start-endfor ranges) referencing files in the repo — never bare filenames. - Frontmatter (optional but useful): YAML block with
updated:,sources:(list ofpath:linerefs),tags:. Enables Dataview-style queries later. - Style: Match Nulang's terse, evidence-first tone. Every claim MUST be grounded in a source citation. No marketing language. Prefer bullet lists over prose walls.
- Length: Pages should be scannable — one screen ideally, three max. Deep detail lives in cross-referenced sub-pages, not walls of text.
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.
- 11d ago First seen · 107 lines · 148 tokens per session scan A a5d45ae4f503
wiki-updater is a skill published in the GitHub repository nulang-org/nulang (5 stars, last pushed today), licensed Apache-2.0. It adds 148 tokens to every session and 2,210 once invoked, about $0.0007 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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