01 / SYSTEM RUNTIME
Six-Layer Request Lifecycle: From Prompt to Visible Answer
Follow L1–L6 from input and identity through Main/Child, tools, publication and UI to understand the full execution lifecycle.
Read full essayTAG · PANORAMA SERIES · CROSS-CATEGORY SELECTION
How does an Agent system deliver a complex task to its user? Start with maps of the system, financial responsibilities and architectural judgment. Then explore five connected questions: how to observe work, evaluate outcomes, inspect evidence, coordinate specialists and continue research across time.
Each essay stands alone, with concrete scenarios, end-to-end relationships, trade-offs and diagrams. Existing observability, evaluation, citation and Subagent essays have been rebuilt at their original URLs. The new long-horizon panorama connects compaction, recovery, continuation and delivery through one lifecycle.
01 / SYSTEM RUNTIME
Follow L1–L6 from input and identity through Main/Child, tools, publication and UI to understand the full execution lifecycle.
Read full essay ↗02 / FINANCIAL SYSTEMS
Connect investors, institutions and accountability while distinguishing research, financial data, authorization and real effects.
Read full essay ↗03 / ARCHITECTURE DECISIONS
Use one verifiable document report to explore nine design judgments about ownership, permissions, evidence, recovery, delivery and evolution.
Read full essay ↗04 / OBSERVABILITY
Connect model requests, tools, actual inputs, publication and readback while preserving original facts and observation gaps.
Read full essay ↗05 / EVALUATION
Follow claims, samples, denominators, graders, delivered content, comparable trials and cost to understand what a result establishes.
Read full essay ↗06 / CITATIONS
Trace source versions, exposed passages, calculations and final claims while keeping provenance and semantic judgment distinct.
Read full essay ↗07 / SUBAGENTS
Connect context isolation, methods, dependencies, handoffs, recovery and total cost so local autonomy serves one delivered result.
Read full essay ↗08 / LONG-HORIZON RESEARCH
Connect research loops, context reduction, staged delivery, recovery, explicit continuation and user adjustments across time.
Read full essay ↗New to agents? Begin with Agents in 15 Minutes, then use the six-layer panorama to examine a complete request. For financial products, start with the financial-agent map to distinguish research, data, business authorization and actual effects. For design choices, begin with the nine judgments behind one report.
When building or improving a research system, follow one task through the five engineering panoramas: long-horizon research explains continuing work; Subagents examines delegation and handoff; citations connects conclusions to original evidence; observability reveals actual handoffs; evaluation judges whether a change delivers the value required. You can also read any one directly without finishing the others first.
Every article retains its unique placement in the modules, architecture or engineering catalog. This is a cross-category tag. Existing article URLs, related reading and historical editions remain available.