aleph
Verified Safeby Hmbown
Overview
Aleph is an MCP server that provides LLMs programmatic access to gigabytes of local data without consuming context, implementing the Recursive Language Model (RLM) architecture.
Installation
alephEnvironment Variables
- ANTHROPIC_API_KEY
- OPENAI_API_KEY
- OPENAI_ORG_ID
- ALEPH_PROVIDER
- ALEPH_MODEL
- ALEPH_SUB_MODEL
- ALEPH_MAX_TOKENS
- ALEPH_MAX_COST
- ALEPH_MAX_ITERATIONS
- ALEPH_MAX_DEPTH
- ALEPH_MAX_WALL_TIME
- ALEPH_MAX_SUB_QUERIES
- ALEPH_SUB_QUERY_BACKEND
- ALEPH_SUB_QUERY_API_KEY
- ALEPH_SUB_QUERY_URL
- ALEPH_SUB_QUERY_MODEL
- ALEPH_TOOL_DOCS
Security Notes
The project explicitly implements a 'best-effort' sandboxed Python REPL (`exec_python`) which blocks common dangerous operations (filesystem, network, subprocess, dunder access, eval/exec/compile). Action tools (`run_command`, `read_file`, `write_file`) that interact with the filesystem or execute shell commands are gated by an `--enable-actions` flag, workspace scoping (`--workspace-mode`), and optional `--require-confirmation`. Sub-query functionality can launch CLI tools (e.g., `claude`, `codex`) or make external API calls, which are inherently external interactions. No hardcoded secrets were identified. The security design is transparent and offers control to the user, but the inherent nature of running arbitrary code or commands necessitates user vigilance and stronger external isolation for untrusted inputs.
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