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sift-gateway: Instructions file for Claude Code

CLAUDE.md

sift-gateway CLAUDE.md is an instructions file for Claude Code from lourencomaciel/sift-gateway. It costs 1,640 tokens per session, scanned A, original, MIT.

Project-specific instructions for Sift Gateway, a Python command-line tool and service for managing configurations, databases, files, and upstream connections. They document its layout, coding style, and commands for building, testing, checking, and running it.

In plain words
What is it for?
Use them when editing Sift Gateway, running its unit or integration tests, checking types and documentation, or managing its configured packages and transports.
Why use it?
They give an AI coding agent the repository’s working rules and exact commands, reducing guesswork when changing the code.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is lourencomaciel/sift-gateway's own configuration. It tells Claude Code how to work on sift-gateway 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 sift-gateway configures →

not rated 31repo 1mo ago A scan 1,640 tokens original MIT
View source ↗ lourencomaciel/sift-gateway pypi.org
Reuse

Borrowing it

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

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/lourencomaciel/sift-gateway/claude-md"><img src="https://agentmods.dev/badge/instructions/lourencomaciel/sift-gateway/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,640 This file is loaded in full into every session.
When invoked 1,640 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 $0.01640 $0.01640
Opus 5 $0.00820 $0.00820
Sonnet 5 $0.00328 $0.00328
Haiku 4.5 $0.00164 $0.00164

Measured 9d ago against content hash 52aa18df7b73, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

sift-gateway 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 9d 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 · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sift

Build & Test

  • uv run python -m pytest tests/unit/ -q — run unit tests
  • uv run python -m ruff check src tests — lint
  • uv run python -m ruff format src tests — auto-format
  • uv run python -m mypy src — strict type checking
  • PYTHONPATH=src uv run python scripts/check_docs_consistency.py — enforce docs/runtime contract
  • Integration tests: uv run python -m pytest tests/integration/ -q
  • Build system: uv_build via pyproject.toml
  • Always run full test suite after changes: tests must stay green

CLI

  • sift-gateway --check — validate config/DB/FS and upstream config validity
  • sift-gateway init --from <file> — import mcpServers config (SQLite backend)
  • sift-gateway upstream add <json> — add upstream to existing config
  • sift-gateway install <packages...> / sift-gateway uninstall <packages...> — manage code-query packages
  • --dry-run and --revert flags on init; --data-dir works globally
  • Transport modes: --transport stdio (default), sse, streamable-http

Project Structure

  • Source: src/sift_gateway/
  • main.py — CLI entrypoint (argparse, subcommands)
  • app.py — Composition root (config -> db -> fs -> upstreams -> MCP server)
  • lifecycle.py — Startup checks (CheckResult)
  • constants.py — Version strings, WORKSPACE_ID = "local", ID prefixes (art_, bin_), reserved keys
  • config/ — Pydantic settings (GatewayConfig, UpstreamConfig), init/sync/secrets
  • db/ — SQLite backend, repos, migrations
  • mcp/ — GatewayServer, upstream connections, tool mirroring, handlers
  • mcp/handlers/ — consolidated artifact routing (query_kind=code, next_page) plus mirrored tool handling
  • envelope/ — Envelope frozen dataclass, ContentPart union, ErrorBlock, normalize/serialize
  • artifacts/ — artifact creation pipeline (persist_artifact)
  • mapping/ — full (in-memory) + partial (streaming) schema discovery
  • retrieval/ — output budget truncation for retrieval responses
  • query/ — JSONPath, select paths, structured filters, SQL compilation
  • pagination/ — auto-pagination loop, metadata extraction
  • cursor/ — Unsigned cursor tokens (cur1.<payload_b64u>), TTL enforcement
  • canon/ — RFC 8785 canonical JSON and compression helpers (gzip/none)
  • codegen/ — code query execution in subprocess with AST safety guards
  • obs/ — structlog setup (LogEvents constants), Prometheus metrics (GatewayMetrics)
  • jobs/ — quota enforcement, soft/hard delete, FS reconciliation
  • Tests: tests/unit/ (~97 files), tests/integration/
  • Docs: docs/ — README.md, quickstart.md, config.md, api_contracts.md, deployment.md, errors.md, observability.md, recipes.md, architecture.md
  • Local dev: local/ — gitignored; place ad-hoc validation scripts, scratch files, and test data here (not in scripts/ which is tracked)

Read the full file on GitHub · 94 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. 9d ago First seen · 94 lines · 1,640 tokens per session scan A 52aa18df7b73

Subscribe to this mod's changes

sift-gateway CLAUDE.md is an instructions file published in the GitHub repository lourencomaciel/sift-gateway (31 stars, last pushed 1mo ago), licensed MIT. It adds 1,640 tokens to every session, about $0.0082 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 2026-08-30.

ai-agentsartifactsclimcpmodel-context-protocol
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