Metric label cardinality: what never to use as a label
Every unique label combination creates a new time series. Learn what to keep out of metric labels, where that detail belongs, and how to spot a runaway.
Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
Every unique label combination creates a new time series. Learn what to keep out of metric labels, where that detail belongs, and how to spot a runaway.
Reasoning tokens are billed as output even when you only see a summary. Learn to meter them, cap them with effort or budgets, and avoid cut off answers.
How to compute a real cache hit rate from the usage object, which fields to log, and what a low number usually means. Includes a small code example.
Tools let the model act, resources give the app read-only context, prompts give the user a template. Here is how to pick the right MCP primitive.
MCP reports two kinds of tool failure. Execution errors let the model self-correct, protocol errors usually do not. How to design both for agents.
A stdio MCP server speaks the protocol on stdout, so debug prints corrupt it. Log to stderr instead. Why this happens and how to fix it quickly.
Work through paths, JSON, environment variables, logs and protocol versions in order to find why an MCP server fails to start or connect in your client.
MAVLink 2 signing appends a 48 bit signature to each packet so a vehicle can check the sender. It does not encrypt traffic. Here is how it works.
When two paths pull in different versions of a library, Maven picks the closest one to your project. Learn the rule, its trap, and how to override it.
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