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System Logs

An archive of decisions, failures, changes, and shipped work. The record stays useful by keeping the sequence—and the limits—visible.

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The Agent Found the Endpoint. What Else Would Change?

Why locating an API endpoint is only the first step in assessing a code change across services, consumers, and contracts.

In a 2026 presentation , Postman engineer Kamalakannan Nandagopal described an API context graph built around more than 115 microservices. The graph was designed to connect endpoints, implementations, callers and observed service relationships so that coding agents could investigate changes beyond a single repository. He also described…

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Retrieval Timing Changes the Evidence an Agent Reasons From

Why pre-loop evidence assembly, reactive search, and evidence use are separate failure surfaces in agentic retrieval.

retrieval-architecturecontext-engineeringagent-search
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Can You Take Persistent Agent Memory With You?

A practical custody test for persistent agent memory: what can be inspected, corrected, deleted, exported, moved, and preserved when the surrounding system changes.

agent-memorydata-ownershipportability
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Early Trajectory Compression Can Remove Evidence a Later Task Needs

Why irreversible trajectory compression should wait until the consuming objective is known, unless policy or a bounded use justifies earlier loss.

trajectory-memorycontext-compressionagent-memory
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Agent Memory Needed an Admission Gate

Why durable agent memory needs a governed admission path before information becomes persistent context.

agent-memorymemory-governancecontext-quality
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RAG Retrieval Is Not Grounding Evidence

Why finding the right document in a RAG pipeline does not prove the final answer is supported, and how to trace the evidence boundary that failed.

raggroundingevidence
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The Context Window Is the Last Mile

A seven-layer diagnostic for tracing context failures upstream of the model window, from selection and representation to retrieval, compaction, permissions, inspection, and final capacity.

context-engineeringagent-systems
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