silo: Skill for Claude Code

.claude/skills/graft/SKILL.md

graft is a skill for Claude Code from silo-code/silo. It costs 56 tokens per session (2,424 once invoked), scanned A, a copy of graft, MIT.

A repository knowledge guide and command-line tool for finding code and understanding how parts of a project connect. It stores explanations linked to exact file and line locations, so an agent can query the project before reading source files.

In plain words
What is it for?
It is for locating implementations, tracing callers, answering questions about project structure, and scoping edits. It can optionally include short code excerpts in search results.
Why use it?
It reduces the need to search large codebases manually and helps preserve links between definitions and the code that calls them.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: positional $N argument.

This is silo-code/silo's own configuration. It tells Claude Code how to work on silo itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything silo configures →

Reuse

Borrowing it

Nothing to install: this file belongs to silo-code/silo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/silo-code/silo/main/.claude/skills/graft/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/silo-code/silo

Made for: Claude Code.

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 graft

README.md
[![agentmods](https://agentmods.dev/badge/skills/silo-code/silo/graft/github.svg)](https://agentmods.dev/skills/silo-code/silo/graft)
Your own site
<a href="https://agentmods.dev/skills/silo-code/silo/graft"><img src="https://agentmods.dev/badge/skills/silo-code/silo/graft/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.

agentmods 80×15 button for graft

Your own site · 80×15
<a href="https://agentmods.dev/skills/silo-code/silo/graft"><img src="https://agentmods.dev/badge/skills/silo-code/silo/graft.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,424 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 5.1 $0.00056 $0.02424
Opus 5.5 $0.00022 $0.00970
Sonnet 5.5 $0.00011 $0.00485
Haiku 4.5 $0.00006 $0.00242

Measured 1mo ago against content hash bc338fab9fd8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

graft 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.

Origin

This is a copy

100% identical to graft — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/graft/SKILL.md · 157 lines

How it starts

The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.

graft

graft/ holds a graph of this repo: small markdown nodes that each explain one part in prose and name the exact file:line spans they cover, plus a wiring graph of who-calls-what. Querying a node costs a few hundred tokens; rebuilding that understanding by reading source costs thousands, and misses the edges.

Every command below is $0, needs no API key, and returns in under a second. There are six of them. Pick the one that fits the task, run it, act on the answer; don't chain tools hoping for more. Most tasks need one call.

The tools

1 · graft ask "<question>" --source: locate + understand (the default)

Ranked retrieval over the graph, routed automatically between prose nodes and the wiring graph, returning the top hits with exact file:line.

  • --source inlines the code at each hit, the ≤8-line crux of each definition, so the result IS the code you need, no follow-up file read. Add --full only when the crux is too small to act on.
  • --in <path> narrows to a subtree before ranking; -n N caps results (default 8).
  • Use it when the question is conceptual or locational: "how does auth work", "where is rate-limiting handled", "what assembles the request pipeline".
  • One ask usually answers. A genuinely multi-part question needs one ask per distinct sub-aspect, never the same question reworded. Few or weak hits mean switch tool (grep / skeleton / callers), don't re-ask.

2 · graft grep "<pattern>": exhaustive find

Regex (or --fixed for a literal) over every indexed file, hits grouped by enclosing symbol and ranked by coupling; it also reports files it couldn't read.

  • Use it when you need every occurrence: all call sites, all uses of a constant, all providers. ask is ranked top-N and will miss instances; grep won't. One grep replaces a spray of asks.
  • Search a short symbol name or literal, not a full guessed signature: an over-specific regex (func (s *Server) GenerateHandler) returns nothing even when the code is indexed. If a grep misses, loosen it (drop the receiver and signature, keep the bare name) and retry graft grep — do NOT switch to raw grep -rn, which is slower and unranked.
  • -i case-insensitive; --in <path> scopes to a subtree. Raw grep -rn is only for files graft genuinely doesn't index (docs, configs, brand-new files).

Read the full file on GitHub · 157 lines

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. 1mo ago Changed · -8 lines bc338fab9fd8
  2. 1mo ago First seen · 165 lines · 56 tokens per session scan A ad9bfd1d28d7

Subscribe to this mod's changes

graft is a skill published in the GitHub repository silo-code/silo (62 stars, last pushed today), licensed MIT. It adds 56 tokens to every session and 2,424 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to graft, differing in 6 lines, and is treated as a copy.

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