A command that downloads development standards from a configured GitHub repository and stores them locally.

Checking for updates, synchronizing all or selected files, excluding drafts, forcing a full refresh, and configuring retries, timeouts, and parallel downloads.

It keeps local standards current and can avoid downloading files that have not changed.

sync — Command by williamzujkowski

Install

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.

agentmods

npx agentmods add commands/williamzujkowski/mcp-standards-server/sync

Clone the repo

git clone --depth 1 https://github.com/williamzujkowski/mcp-standards-server

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 1,191 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

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.

Model	Per session	Once invoked
Fable 5	$0.00000	$0.01191
Opus 5	$0.00000	$0.00596
Sonnet 5	$0.00000	$0.00238
Haiku 4.5	$0.00000	$0.00119

Measured 2d ago against content hash 93e363f24d79, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sync 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 2d 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.

docs/cli/commands/sync.md · 228 lines

How it starts

The opening of the file, as written. The whole thing — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.

sync Command

Synchronize standards from the configured GitHub repository.

Synopsis

mcp-standards sync [options]

Description

The sync command downloads standards files from a GitHub repository and caches them locally. It supports incremental updates, force synchronization, and checking for updates without downloading.

Options

`-f, --force`

Force synchronization of all files, ignoring cache TTL.

mcp-standards sync --force

`--check`

Check for updates without downloading files.

mcp-standards sync --check

`--include <pattern>`

Include only files matching the pattern (glob syntax).

mcp-standards sync --include "*.yaml"
mcp-standards sync --include "web-*"

`--exclude <pattern>`

Exclude files matching the pattern.

mcp-standards sync --exclude "*.draft.yaml"

`--parallel <n>`

Number of parallel downloads (default: 5).

mcp-standards sync --parallel 10

`--retry <n>`

Number of retry attempts for failed downloads (default: 3).

mcp-standards sync --retry 5

`--timeout <seconds>`

Timeout for each file download (default: 30).

mcp-standards sync --timeout 60

Examples

Basic Sync

# Sync all standards files
mcp-standards sync

Output:

Starting standards synchronization...
Fetching file list from williamzujkowski/standards...
Files to sync: 25
Downloading: web-development-standards.yaml... [OK]
Downloading: api-design-standards.yaml... [OK]
...
Sync completed with status: success
Duration: 12.34 seconds
Files synced: 25/25

Check for Updates

# Check which files need updating
mcp-standards sync --check

Output:

Checking for updates...

Outdated files (3):
  - web-development-standards.yaml (last synced 48.2 hours ago)
  - testing-standards.yaml (last synced 72.5 hours ago)
  - security-standards.yaml (last synced 96.1 hours ago)

Total cached files: 25
Cache TTL: 24 hours

Force Sync Specific Files

Read the full file on GitHub · 228 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.

2d ago First seen · 228 lines · 0 tokens per session scan A 93e363f24d79

Subscribe to this mod's changes

sync is a command published in the GitHub repository williamzujkowski/mcp-standards-server (3 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,191 tokens. 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.

Writing and docs

sync