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name: context-infrastructure description: Design, audit, or improve durable context and memory systems for AI agents using layered observations, reflection, conservative promotion, progressive disclosure, and replayable boundary artifacts. Use when building long-running agent memory, deciding what belongs in sessions versus rules or skills, preventing context bloat, or turning repeated corrections and workflows into durable assets. Do not use it to copy another person's private axioms or automatically promote one-off observations.

Context Infrastructure

Treat context as a compounding system, not a giant prompt. Route, filter, test, and promote experience so future agents receive the smallest useful context.

This AX adaptation is inspired by the public grapeot/context-infrastructure reference implementation and the Observer/Reflector pattern described by Mastra Observational Memory. Reuse the architecture, not another person's accumulated axioms, preferences, or private data.

Define four layers

Layer	Purpose	Typical contents
L0 Session	Execute the current task	Prompt, active diff, command output, current plan
L1 Observations	Preserve selected raw signals	User corrections, repeated friction, notable failures, explicit preferences
L2 Reflection	Distill and discard	Deduplicated patterns, contradictions, counterexamples, promotion proposals
L3 Durable assets	Change future behavior	Axioms, reusable skills, global methodology, technical knowledge, project memory

Do not skip layers. Keep a new signal in L1 until reflection shows that it is repeated, stable, useful outside the original task, and routed to the right scope.

Separate observation from promotion

Make the Observer append concise evidence. Make the Reflector merge, discard, or propose promotion.

• Record only explicit corrections, preferences, retractions, and recurring workflow lessons worth reconsidering. Most tasks should produce no memory.
• Preserve source, date, scope, and counterexamples needed to evaluate a signal.
• Merge duplicates and flag contradictions during reflection.
• Generate a reviewable promotion proposal before changing durable rules, axioms, skills, or shared memory.
• Keep automatic promotion off by default unless the domain has deterministic validation, rollback, and an explicitly authorized policy.

This split prevents one intense session from rewriting long-term behavior.

Route promotion by scope

Repeated signal	Durable target
Stable personal preference	Personal axiom or preference profile
Repeated cross-project workflow	Reusable skill
Global operating methodology	Focused rule or policy
Reusable technical lesson	Knowledge entry
Project-specific decision or constraint	Project memory or source-of-truth documentation
One-off task fact	Keep ephemeral or discard

Promote only claims that change future decisions. Preserve dissent and edge conditions; a rule without boundaries is usually too broad.

Design for progressive disclosure

• Keep the global entrypoint as a routing table, not the whole memory system.
• Use indexes to tell agents when to load focused rules, skills, or knowledge.
• Put triggering information in skill metadata and detailed procedure in the skill body or directly linked references.
• Retrieve project-specific context before global history when the task depends on current source truth.
• Prefer sparse, high-density context over broad dumps and repeated summaries.

Do not add another agent when a fixed-contract parser, index, or API call can route the context deterministically.

Make boundaries inspectable

For every context-producing workflow, define:

1. Input boundary: source records, time window, permissions, and freshness.
2. Selection boundary: inclusion, exclusion, deduplication, and privacy rules.
3. Artifact boundary: an inspectable observation or reflection record before AI judgment becomes durable.
4. Promotion boundary: owner, threshold, review, target, and rollback.
5. Consumption boundary: which task shape loads which durable asset.

Store AI-facing inputs and AI-produced intermediate outputs when they affect visible or durable behavior. Debug bad output by inspecting freshness, timestamps, filters, ordering, and fallbacks before changing the model or prompt.

Protect integrity

Test the parts that future agents rely on:

• parser and schema shape;
• time-window and freshness filtering;
• deduplication and contradiction handling;
• fallback and retry signals;
• privacy, secret, and retention scans;
• deterministic replay from saved boundary artifacts;
• promotion thresholds and rollback behavior.

Minimize collection. Do not inspect private stores, upload records, or broaden retention without authorization. Redact secrets before an observation becomes a shared or durable artifact.

Completion contract

Return a compact system design or audit containing:

• the L0–L3 stores and owners;
• Observer and Reflector contracts;
• the signal-to-target promotion table and review threshold;
• progressive-disclosure routing;
• privacy, freshness, replay, and rollback checks;
• remaining manual decisions.

Complete only when a new observation can be traced from source to consumption without silent promotion or an uninspectable context jump.