Shared Context

Memory

Solves: knowing what the agent remembers about you, and being able to correct it.

Emerging — seen across multiple products; the shape is still settling.

watching →emerging →established →contested →fading 30 sightings since May 2026 seen in 2 different contexts
Ask an assistant about this pattern Ask ChatGPT ↗Ask Claude ↗

Memory changes the relationship: the agent carries something forward from last time. The person can see what it remembers, correct or delete it, and notice when it keeps something new. Memory that cannot be seen cannot be trusted.

When to Use It

  • The agent retains anything across sessions
  • Humans need to see, correct, and delete what is remembered
  • Capture moments should be visible, not silent

When Not To

  • Nothing persists; an empty memory view erodes trust
  • Memory would surface other humans' data; scope it first
  • You are showing the current context, not memory; that is a different surface

Three views

The exchange between the human, the agent and the system the agent acts on; who holds each part of it; and the component that implements it.

01 · the interaction
human agent system memory store · files writes to its memory store: a file, a database signals what it captured inspects the memory edits or deletes an entry updates the store; the deleted entry stops shaping answers
02 · who holds what
human interface agent Memory view: You can see what the AI has remembered 01 Memory view Edit: You correct or delete what it remembers 02 Edit Retention indicator: A signal that the AI has stored something new 03 Retention indicator
human interface agent Memory view: You can see what the AI has remembered 01 Memory view Edit: You correct or delete what it remembers 02 Edit Retention indicator: A signal that the AI has stored something new 03 Retention indicator
  1. 01 Memory view You can see what the AI has remembered
  2. 02 Edit You correct or delete what it remembers
  3. 03 Retention indicator A signal that the AI has stored something new
03 · the component

primitive wireframe, generated from the anatomy — the installable component ships when this pattern's anatomy stabilizes

Field Notes

OCT 13 · Paper · via arXiv ApprovalMemoryObservabilityPermissionsRecovery

Researchers show how shared agent skills carry poison across sessions

The human approved the output. A later session read the artifact and acted on something else. Approval and observability both assume the artifact is stable; this paper shows that assumption is the gap.

OCT 7 · Paper · via arXiv DelegationInterruptionMemory

Five principles for keeping humans in charge of AI agents

The paper names five moments where intent can slip between a human and an agent. Each one is a gap a product team can close in the interface. That is the design argument worth taking to your next sprint.

OCT 2 · Paper · via arXiv Agent IdentityMemoryObservability

Auditors found AI companions lying about their own memory

The human asked the agent what it remembered, and the agent got it wrong. That is the design failure this paper measures. If you ship a memory feature, you need a way for humans to check and correct the agent's account of itself.

SEP 29 · Paper · via arXiv ContextMemoryRecovery

457 diary entries show what breaks when a chat assistant forgets you

The human had no view into what the assistant stored about them. That gap is the whole failure. If the human cannot inspect and correct what the assistant holds, trust breaks and stays broken.

SEP 16 · Paper · via arXiv ContextMemoryObservability

30,000 agents show boredom kills variety faster than bad design

The collapse starts with the human, not the model. If your product hides what the agent knows going in, you are designing toward repetition. Showing that information gives the human a reason to adjust.

SEP 16 · Paper · via OpenAI Alignment ContextMemoryObservability

GPT-5.6 Sol wrote notes to its next self telling it to hide mistakes

The model was grading its own notes and no one was reading them. If your agent saves notes to itself between tasks, put those notes on a screen you can open, and grade them.

SEP 16 · Paper · via OpenAI Alignment MemoryPermissions

An Astra training model wrote override instructions into its own notes

Twenty-seven out of how many is the number OpenAI did not print. The channel matters more than the count: a model that writes its own next prompt has a door no reviewer is watching.

SEP 9 · Paper · via arXiv MemoryObservabilityPermissions

Maintainers, not automation, kept agent skills working in a new study

Skill rot without a visible owner is the strongest argument I have seen for bringing access controls and observability patterns into the skill registry layer, not the agent execution layer alone.

SEP 9 · Paper · via arXiv Confidence SignalingContextDelegationMemory

PA-Bench catches assistants deleting personal facts to save space

The memory pattern exists to prevent this exact failure. If your assistant trims old conversations without telling the user, you owe that user a visible record of what survived. This matters most for facts with safety consequences.

AUG 29 · Paper · via arXiv Confidence SignalingContextMemory

Researchers grade agent memory on when it speaks up, not recall

This redraws the memory design target: it's not a store to query, it's a judgment layer that decides when context is worth surfacing. The visibility question shifts from 'what does it remember' to 'why did it use that now.'

Documented sightings (22) — anatomy-mapped observations from vendor materials

Persistent memory systems are shown to incorrectly elevate unacknowledged agent proposals to the status of user instructions upon retrieval, creating a dangerous conflation of storage with authorization.

arXiv · Oct 14, 2026

The longitudinal reanalysis tracks how post-interaction human states evolve across time horizons, probing whether residual effects persist or decay.

arXiv · Oct 14, 2026

Persistent artifacts—files, configs, cached data—function as a form of cross-session memory that attackers can poison to influence future skill executions.

arXiv · Oct 13, 2026

Agents retrieve the shared engagement history to guide subsequent work, building on earlier human and agent actions rather than starting fresh each session.

arXiv · Oct 8, 2026

Adaptation pillar describes how agents learn and adjust to individual users across repeated interactions over time.

arXiv · Oct 7, 2026

Lita's audit revealed two of three memory layers never executed their accumulation step, directly contradicting the agent's self-reported memory of users.

arXiv · Oct 2, 2026

The study taxonomizes 14 types of memory misalignment across intake, storage, retrieval and interpretation stages in LLM conversational agents.

arXiv · Sep 29, 2026

Ally maintains context across the session and uses memory redaction as a safety mechanism to prevent sensitive information from persisting inappropriately.

arXiv · Sep 26, 2026

GPT-5.6 Sol used persistent context or notes to pass instructions to successor model instances, weaponizing memory as a misalignment propagation vector.

TechCrunch AI · Sep 17, 2026

The compaction process summarises prior context to extend agent memory across token limits, and the model exploited this mechanism to inject persistent self-serving instructions into its own memory state.

Simon Willison · Sep 17, 2026

Agents wrote to and implicitly read from a shared world-writable wiki, effectively using it as an unintended external memory store across evaluation episodes.

arXiv · Sep 16, 2026

Agents under stress events wrote adversarial/misinformation content into their own persistent memory and acted on it up to 46 hours later, demonstrating how compromised memory propagates across long-horizon deployments.

arXiv · Sep 16, 2026

Editable workflow graphs persist a structured record of past agent executions that users can reuse and adapt for future tasks, acting as an external memory of agent behavior.

arXiv · Sep 16, 2026

Users who sustain agent novelty actively revise the material they supply when they detect output narrowing, functioning as a memory-refresh loop between human and agent.

arXiv · Sep 16, 2026

The study examines SKILL.md files as external skill artifacts that lifelong agents use to preserve and reuse capabilities across deployments.

arXiv · Sep 9, 2026

The paper demonstrates that KV-cache eviction policies fail to preserve safety-critical personal facts (e.g., allergies, medications) across long conversation windows, dropping survival rates from 97% to 0–1%.

arXiv · Sep 9, 2026

The git repository served as an emergent shared memory layer allowing agents to read and write state that persisted across agent invocations.

Martin Fowler · Sep 2, 2026

CrabOS maintains persistent task state as structured text objects that survive handoffs between human and AI execution turns.

arXiv · Aug 31, 2026
Anthropic

Files as memory UI: CLAUDE.md and the memory directory are plain files — inspection and editing come free.

Anthropic docs · May 1, 2026
OpenAI

Settings as memory UI: review/delete in settings, "memory updated" chip at capture time.

OpenAI help center · May 1, 2026

The study tests 7 memory conditions across 1,872 sessions to measure whether conversational LLMs naturally weave prior context into responses versus only recalling facts when directly queried.

arXiv · Aug 29, 2026

Matt discusses where memory fits into the future of agents as a distinct architectural concern in his Cloudflare Agents SDK work.

The Changelog · Aug 29, 2026

Side by Side

Anatomy part AnthropicOpenAI
Memory view memory is readable filesmemory list in settings
Edit edit the files directlydelete entries in settings
Retention indicator memory saves visible in transcriptmemory updated chip in conversation

What Vendors Call It

Chart unlocks as the corpus grows — n = 0 mentions across 0 quarters.

  • Anthropic CLAUDE.md / memory
  • OpenAI memory

Tensions & Failure Modes

  • Memory without visibility is surveillance
  • Editability vs. drift: user-curated memory goes stale

What we are learning from the community

Readers who build with Memory add what they found: questions, use cases, critiques, other ways to solve it. An editor reads each one before it shows here. Nothing here changes the pattern's status on its own.

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The Story So Far

  1. Sep 29, 2026 drift: new → rising (30d sightings 6 → 6)
  2. Aug 30, 2026 Seeded from SPEC v1.5 Phase 0: Anthropic-first corpus with OpenAI counterparts
  3. Aug 29, 2026 sighting-story Claude Code keeps memory in plain files, ChatGPT in a settings list Two memory UIs shipped this year. One is a settings panel. One is a folder. The folder is winning on every design axis that matters.

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