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syllago: Instructions file for Claude Code

CLAUDE.md

syllago CLAUDE.md is an instructions file for Claude Code from OpenScribbler/syllago. It costs 1,012 tokens per session, scanned A, original, Apache-2.0.

A set of instructions for developing Syllago, a package manager that converts AI coding-tool content between providers.

In plain words
What is it for?
Use it when modifying Syllago to follow its build and test process, install the compiled command on the PATH, and respect its conventions for rules, skills, agents, prompts, hooks, commands, and MCP configurations.
Why use it?
It prevents testing a stale installed command after changing Go code by requiring both a build and installation of the new binary.

Instructions file for Claude Code

Written for Claude Code: PreToolUse hook event. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is OpenScribbler/syllago's own configuration. It tells Claude Code how to work on syllago 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 syllago configures →

not rated 15repo changed 18d ago A scan 1,012 tokens original Apache-2.0
View source ↗ OpenScribbler/syllago syllago.dev
Reuse

Borrowing it

Nothing to install: this file belongs to OpenScribbler/syllago. 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/OpenScribbler/syllago/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/OpenScribbler/syllago

Made for: Claude Code.

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Per session 1,012 This file is loaded in full into every session.
When invoked 1,012 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found 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 $0.01012 $0.01012
Opus 5.5 $0.00405 $0.00405
Sonnet 5.5 $0.00202 $0.00202
Haiku 4.5 $0.00101 $0.00101

Measured 18d ago against content hash 2c8cebab1e5c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

syllago CLAUDE.md 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 18d 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.

CLAUDE.md · 61 lines

How it starts

The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Syllago

A package manager for AI coding tool content. Import, export, and convert content (rules, skills, agents, prompts, hooks, commands, MCP configs) between providers. Hub-and-spoke conversion through syllago's own canonical format.

Content registries are community-driven — syllago provides the tooling but does not own or curate registry content.

Build and Test

make setup          # Configure git hooks (run once after clone)
make build          # Compile binary to cli/syllago
cp cli/syllago ~/.local/bin/syllago   # Install to PATH (REQUIRED — see below)
make test           # Run all tests

IMPORTANT: After any Go code change, you MUST do BOTH steps before declaring work complete or asking the user to test:

  1. Build — make build writes the compiled binary to cli/syllago only. The Makefile has no install target.
  2. Install to PATH — cp cli/syllago ~/.local/bin/syllago (or whichever path which syllago resolves to). The user's syllago command runs the binary on PATH, NOT cli/syllago. Skipping this step means the user tests against a stale binary and your fix appears not to work — wasting a full debug cycle.

If you only ran make build, the work is NOT done. Both commands are mandatory; treat them as one indivisible step.

IMPORTANT: Always run cd cli && make fmt before committing Go changes. CI enforces gofmt and will fail on unformatted code. A pre-commit hook also blocks unformatted commits locally.

For TUI visual changes, regenerate golden baselines after tests pass:

cd cli && go test ./internal/tui/ -update-golden

Key Conventions

  • Hooks and MCP configs merge into provider settings files (JSON merge). All other content types use filesystem (files, dirs, symlinks).
  • Hook canonical format is defined in docs/spec/hooks.md. Canonical event names are provider-neutral snake_case (before_tool_execute, not PreToolUse). Canonical tool names are descriptive lowercase (shell, file_read, file_edit). Provider-native names (CC's PreToolUse, Gemini's BeforeTool, etc.) live in the HookEvents/ToolNames maps in toolmap.go — Claude Code is a regular provider entry, not the implicit key.
  • Go conventions: see cli/CLAUDE.md
  • TUI component patterns: see cli/internal/tui/CLAUDE.md

Read the full file on GitHub · 61 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. 18d ago Changed · +2 tokens per session 2c8cebab1e5c
  2. 21d ago Changed · -4 lines · -64 tokens per session f1d1631700e2
  3. 1mo ago First seen · 65 lines · 1,074 tokens per session scan A c47e76827174

Subscribe to this mod's changes

syllago CLAUDE.md is an instructions file published in the GitHub repository OpenScribbler/syllago (15 stars, last pushed 3d ago), licensed Apache-2.0. It adds 1,012 tokens to every session, about $0.0040 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 2026-08-30.

ai-agentsai-toolsclideveloper-toolsdevexgo
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