Preflight Python Packages

agentbill-sdk

See what each AI agent, client and job costs, in dollars at list price, and give any job a spend ceiling: preflight answers approved: false past it, and your code decides. An SDK and an HTTP API, not a proxy.

chain-signer

Security suite for AI agents — catch the dangerous thing before signing: preflight EVM transactions for drains, inspect EIP-712 signatures for permit-phishing, and gate agent actions by policy. Pairs with any wallet/MCP stack; non-custodial wallet included.

little-canary

Detects prompt injection by its effect on a sacrificial canary model, not just pattern matching: untrusted input hits a powerless model first, a behavioral check reads the residue, and it returns block, flag, or pass before your primary model acts. Inbound preflight sensor, not a guarantee.

nazeyatta

Command-line preflight and post-action verification checker for AI workers and automation. Explicit UNKNOWN/VERIFIED states, PASS/REVIEW/BLOCK, reproducible receipts. 👈😽

agentbill-mcp

See what each AI agent, client and job costs, in dollars at list price, and give any job a spend ceiling: preflight answers approved: false past it, and your code decides. An SDK and an HTTP API, not a proxy.

twzrd-agent-intel

TWZRD buyer-side x402 trust packages: x402 trust gate, elizaOS trust plugin, and the agent-intel client. Vet a counterparty before you pay.

twzrd-mcp

TWZRD buyer-side x402 trust packages: x402 trust gate, elizaOS trust plugin, and the agent-intel client. Vet a counterparty before you pay.

csv-quality-gate

csv-quality-gate is a command-line data quality gate that runs CSV preflight validation, failing fast before an ML or LLM pipeline ingests broken, incomplete, duplicated, or junk input. It checks missing columns, empty files, empty cells, and duplicate rows, returning pass, warn, or fail with matching exit codes. Stdlib-only, CI-ready.

csv-preflight

Preflight Kit validates Shopify product CSVs before upload — locally, with no store access or API key.

comfy-preflight

A gate that runs on a ComfyUI workflow graph in the seconds before submission and halts a submission that would spend credits producing a known-wrong result.

blackwall-hermes-plugin

BLACK_WALL pre-action guardrail for Hermes Agent (NousResearch). Hooks pre_tool_call to call forecast() before any tool runs; blocks STOP verdicts; auto-reports outcomes via observe(). Decision receipts are Ed25519-signed and verifiable offline.

blackwall-sdk

Python client for BLACK_WALL — pre-action risk gate for AI agents. Call forecast() before any irreversible action; observe() to close the loop. Zero-dep stdlib-only.

schemaport

Check LLM requests against provider rules before sending. Offline CLI for JSON Schema subsets and prompt-cache safety.

preflight-kit

Preflight Kit validates Shopify product CSVs before upload — locally, with no store access or API key.

envguard-tool

macOS-first Python environment orchestration: preflight validation, dependency resolution, lock files, and safe managed execution. Catches broken envs before they break your code.

policynim

PolicyNIM is a policy-aware engineering preflight layer for AI coding agents.