Claude · Published 2026-10-06

Building secure agents for knowledge work

Open on YouTube ↗

Summary

Overview

  • Speaker: Katelyn Lesse, Willie Williams, Dan Shipper
  • Channel: Claude
  • Main topic: Building secure and effective AI agents for knowledge work using Claude and Every's AI co-worker platform
  • Purpose: To explore how AI agents can transform knowledge work, the importance of security and isolation, the challenges of team-wide AI adoption, and how platform-level primitives enable better human-AI collaboration. A discussion between Anthropic's Head of Platform Engineering Katelyn Lesse, Every's Head of Platform Willie Williams, and Every's Co-Founder & CEO Dan Shipper on building secure AI agents for knowledge work, utilizing platform capabilities, and bridging the gap between generic AI benchmarks and practical, customized knowledge work workflows.

Topic Map

Changing Nature of Knowledge Work and AI Benchmarks

  • Explanation: Discussion on how knowledge work tools are evolving and why pre-AI benchmarks do not accurately reflect real-world productivity gains.
  • Key claims:
    • Knowledge work tools are changing rapidly.
    • Benchmarks measure pre-AI tasks and do not reflect individual job enhancement.
    • Engineering teams scale faster with AI agents, a pattern coming to general knowledge work.
  • Examples:
    • Engineering teams using AI agents to pull forward roadmaps by two years.
  • Terminology:
    • benchmark progress
    • knowledge work
    • pre-AI tasks
  • Why it matters: Understanding how to measure AI's actual impact on human productivity versus abstract testing.

What is Every and the Every Agent

  • Explanation: Introduction to Every as a media and technology company building subscriptions and AI co-workers like the Every Agent.
  • Key claims:
    • Every builds subscriptions for staying at the edge of AI.
    • The Every Agent is designed to be the easiest way to AI-pill an entire company.
    • Deploying agents across an entire organization is much harder than single-user usage.
  • Examples:
    • Open enrollment process handled through the Every Agent.
  • Terminology:
    • Every agent
    • AI ambassador
    • open enrollment
    • media and technology company
  • Why it matters: Highlights the transition from individual AI tool usage to company-wide AI agent orchestration.

Kate Bench and Automating Editorial Standards

  • Explanation: How Every uses 'Kate Bench' (named after their editor-in-chief) to codify editorial taste and automate top edits.
  • Key claims:
    • Kate Bench measures how well models match editorial standards.
    • Historical edits are turned into skills inside the Every agent.
    • Automating copy edits saves time while preserving human editorial standards.
  • Examples:
    • Turning 30,000 historical edits into a skill inside the Every agent for Google Docs editing.
  • Terminology:
    • Kate bench
    • top edits
    • editorial standards
    • skill
    • vibe checks
  • Why it matters: Demonstrates how subjective human taste and editorial style can be encoded into AI workflows.

Infrastructure and Cloud Managed Agents

  • Explanation: Why Every chose Cloud Managed Agents for building their agent platform to handle sandboxing, memory, and session management.
  • Key claims:
    • Infrastructure is hard, and building multi-agent systems has hidden complexities.
    • Cloud Managed Agents provide sandboxes, memory, and session control out of the box.
    • Running agents on the same infrastructure as production speeds up development.
  • Examples:
    • Isolating sandboxes and tool calls for testing experiments without impacting production.
  • Terminology:
    • Cloud Managed Agents
    • sandboxes
    • session control
    • infra layer
    • primitives
  • Why it matters: Emphasizes the engineering reality of building reliable agent infrastructure rather than reinventing core systems.

Security, Isolation, and Identity

  • Explanation: Addressing the nuances of security, data isolation, and user identity when agents interact within corporate tools like Slack.
  • Key claims:
    • Built-in isolation makes it easy to separate sandboxes and tool calls.
    • Agents acting in Slack need clear boundaries between internal and external data.
    • Session management ensures agents act with the correct user permissions and context.
  • Examples:
    • Managing user requests in Slack so the agent acts on behalf of the user securely.
  • Terminology:
    • built-in isolation
    • session management
    • tool calls
    • identity
    • sandboxes
  • Why it matters: Security and authorization are critical when AI agents access sensitive company knowledge and tools.

Personality Design and Future of Knowledge Work

  • Explanation: Exploring agent personality design, fidelity to user taste, and how knowledge work will transform over the next few years.
  • Key claims:
    • Agents need personality design to feel like working with real colleagues.
    • Fidelity means the agent matches user taste and expectations over time.
    • Reaching the horizon of knowledge work opens up entirely new possibilities for productivity.
  • Examples:
    • An agent announcing IT security requirements using the voice and tone of a company leader.
  • Terminology:
    • personality design
    • fidelity
    • context management
    • hands experiment
    • bellwether
  • Why it matters: Defines the future of human-AI collaboration where agents embody organizational norms and personal work styles.

Key Points

Company-wide AI adoption requires structured agents

  • Explanation: Individual experimentation with open-source LLMs fades when maintenance is high; centralized agents standardize workflows.
  • Evidence: Transition from individual open-claw tool usage to centralized Every Agent company-wide deployment.
  • Practical implication: Companies should build standardized agent wrappers rather than relying on unstructured employee prompt engineering.

Codifying human taste into agent skills

  • Explanation: By turning historical personal work output into agent skills, teams can automate complex qualitative tasks like editing.
  • Evidence: Turning 30,000 historical editorial edits into Google Doc suggestion skills in Every Agent.
  • Practical implication: Capture expert workflows by converting past work samples into evaluation rubrics and agent prompts.

Infrastructure-first agent development

  • Explanation: Using cloud-managed agent primitives accelerates feature delivery and ensures proper security sandboxing.
  • Evidence: Using Cloud Managed Agents for sandboxes, memory, and session control.
  • Practical implication: Leverage existing managed infrastructure to avoid spending engineering bandwidth on custom sandbox orchestration.

Frameworks, Models & Processes

Kate Bench Framework

  • How it works: Measures AI model output against a specific human expert's historical editing patterns and style preferences.
  • Components:
    • Historical work samples
    • Vibe checks
    • Automated suggestion generation
    • Human acceptance/rejection tracking
  • When to use: When evaluating whether an AI model can replicate qualitative knowledge work tasks like writing and editing.

Examples & Case Studies

Every used their agent to handle company-wide open enrollment paperwork.

  • Illustrates: How complex algebraic PDF planning can be automated by agents that know the employee's context.
  • Lesson: Agents eliminate tedious administrative paperwork by pairing document knowledge with user identity.

An internal announcement skill was created mimicking the company's Head of Operations' tone.

  • Illustrates: Personality and tone fidelity in agent design.
  • Lesson: Adding personality and voice to agents increases organizational trust and adoption.

Actionable Takeaways

  • Immediate:
    • Codify historical work output into reusable agent skills.
    • Use managed agent infrastructure to handle sandboxing and security.
    • Deploy agents within existing communication tools like Slack where knowledge work happens.
  • Strategic:
    • Shift the AI evaluation mindset from generic benchmarks to personalized reference checks and work trials.
    • Design agent personalities that reflect company culture and leadership tone.
    • Treat agents as organizational force multipliers rather than simple automation scripts.
  • Questions to investigate:
    • How do we balance agent autonomy with data security and access permissions?
    • What is the best way to continuously compound agent skill improvements from human feedback?
    • How will agent personality configuration evolve across different organizational silos?

Claims Worth Verifying

  • Engineering teams orchestrating teams of agents have pulled forward their roadmaps by two years. (empirical observation)
  • Cloud-managed agents provide isolated sandboxes and memory primitives that drastically reduce infrastructure overhead. (technical architectural claim)

Notable Quotes

"See very excited to be chatting with you guys. I have said this to you before, but I think you guys are some of the most AG-I-pilled people out there." (at 0:07) "Every is a media and technology company. We build the only subscription you need to stay at the edge of AI." (at 3:44) "We built the Every Agent. It is an AI co-worker. It's an agent that is the easiest way to AI pill your whole company." (at 4:14) "Infrastructure is hard, you know, and a lot of what we want to focus on is like the future of work." (at 21:57)

Compressed Summary

  • Building secure AI agents for knowledge work
  • Transitioning from individual tool usage to company-wide agent orchestration
  • Codifying human editorial taste into reproducible agent skills
  • Leveraging cloud-managed agent infrastructure for security and sandboxing
  • Keywords: agents, knowledge work, infrastructure, security, ai
  • Core insight: Building secure AI agents for knowledge work requires combining robust cloud-managed infrastructure with personalized agent skills that reflect expert human taste and organizational context.

Core insights

6
Mechanismhigh noveltystrong evidence

Historical expert output can be converted directly into agent capability: Every turned 30,000 historical editorial edits into a 'skill' inside their agent so it can make Google Docs suggestions matching editorial taste. The mechanism is treating an archive of prior human work as both the training signal and the acceptance criterion for a skill, rather than writing prompts from scratch.

Why it matters

This is a concrete recipe for automating qualitative knowledge work: mine a person's or team's past work samples, encode them as skills plus evaluation rubrics, and measure model output against the historical pattern. It shifts skill authoring from prompt engineering to corpus-derived behavior.

Generalization

Any domain with a large archive of reviewed professional output (legal redlines, code review comments, design critiques) can be compressed into a domain skill whose quality is judged against the archive itself.

Turning 30,000 historical edits into a skill inside the Every agent for Google Docs editing.
Open source video
Historical edits are turned into skills inside the Every agent.
Open source video
Capture expert workflows by converting past work samples into evaluation rubrics and agent prompts.
Open source video
Practicehigh noveltymoderate evidence

Kate Bench is a personalized benchmark built around a single human expert's historical editing patterns and style preferences, combining 'vibe checks' with automated suggestion generation and human acceptance/rejection tracking, rather than a generic capability benchmark.

Why it matters

It implies that for knowledge work the meaningful eval unit is a named individual's taste, not an aggregate benchmark. This suggests building per-expert or per-team eval harnesses with accept/reject telemetry as the primary quality signal.

Generalization

Personal/org-specific eval suites (n=1 or n=org benchmarks) may be more predictive of production value than public leaderboards for subjective tasks.

Kate Bench measures how well models match editorial standards.
Open source video
Measures AI model output against a specific human expert's historical editing patterns and style preferences.
Open source video
Vibe checks
Open source video
Architecturemedium noveltymoderate evidence

When an agent acts inside shared surfaces like Slack, the boundary problem is not just sandboxing but identity and session scoping: the agent must act on behalf of a specific user with that user's permissions and keep internal vs external data separated.

Why it matters

It relocates authorization responsibility to the agent runtime layer: session management must carry user identity and permission context so tool calls inherit the right authority, and data classification boundaries must be enforced per interaction.

Generalization

Any agent operating in a multi-tenant chat or collaboration surface needs session-scoped identity propagation, not just process isolation, to avoid confused-deputy and data-leak failures.

Agents acting in Slack need clear boundaries between internal and external data.
Open source video
Session management ensures agents act with the correct user permissions and context.
Open source video
Managing user requests in Slack so the agent acts on behalf of the user securely.
Open source video
Architecturemedium noveltymoderate evidence

Infrastructure for agents is treated as a solved primitive layer: adopting cloud-managed agents supplies sandboxes, memory, and session control out of the box, and running agents on the same infrastructure as production speeds development.

Why it matters

It argues for an explicit abstraction boundary: don't hand-roll sandbox orchestration, memory, or session control; consume managed primitives and spend engineering on workflow/skill logic instead. Hidden complexity in multi-agent systems is the stated motivation.

Generalization

The same build-vs-buy calculus that produced managed databases and managed queues now applies to agent sandboxes, memory, and session state.

Infrastructure is hard, and building multi-agent systems has hidden complexities.
Open source video
Cloud Managed Agents provide sandboxes, memory, and session control out of the box.
Open source video
Running agents on the same infrastructure as production speeds up development.
Open source video
Mental Modelmedium noveltyweak evidence

Existing benchmarks measure pre-AI tasks and therefore fail to capture individual job enhancement, even though AI agents let engineering teams scale faster and pull roadmaps forward by years.

Why it matters

It challenges the assumption that benchmark progress is a proxy for realized productivity. If the unit of value is an individual's amplified output rather than task completion, eval design must change to measure per-role enhancement.

Generalization

As agents absorb task-level work, the right metric may be change in a person's scope/velocity rather than task-level accuracy.

Benchmarks measure pre-AI tasks and do not reflect individual job enhancement.
Open source video
Engineering teams scale faster with AI agents, a pattern coming to general knowledge work.
Open source video
Engineering teams using AI agents to pull forward roadmaps by two years.
Open source video
Practicemedium noveltymoderate evidence

Individual experimentation with open-source LLMs fades as maintenance cost rises, so company-wide value comes from centralized agent wrappers that standardize workflows rather than unstructured per-employee prompt engineering.

Why it matters

It frames org-wide adoption as a packaging/maintenance problem, not a model-access problem: the durable artifact is the standardized agent wrapper that survives personnel and tool churn.

Generalization

Team AI adoption is gated by maintenance economics; centralized wrappers win when maintenance burden exceeds experimentation value.

Individual experimentation with open-source LLMs fades when maintenance is high; centralized agents standardize workflows.
Open source video
Companies should build standardized agent wrappers rather than relying on unstructured employee prompt engineering.
Open source video
Deploying agents across an entire organization is much harder than single-user usage.
Open source video

Deep dives

5

n=1 expert benchmarks as production eval for knowledge work

Research question

Can a benchmark built around a single expert's historical accept/reject patterns predict production acceptance better than generic capability benchmarks?

Why

If the unit of quality in subjective knowledge work is a named individual's taste, eval harnesses should be authored per expert/team and use accept/reject telemetry, not public leaderboards.

Kate Bench measures how well models match editorial standards.
Open source video
Measures AI model output against a specific human expert's historical editing patterns and style preferences.
Open source video
Vibe checks
Open source video
Source video

Session-scoped identity and permission propagation for agents in shared surfaces

Research question

What minimal session contract prevents confused-deputy and cross-tenant data leakage when an agent acts on behalf of a user in Slack?

Why

Sandboxing alone doesn't secure multi-tenant collaboration; authorization must move into the session/runtime layer so tool calls inherit user identity, permission context, and data-classification boundaries.

Agents acting in Slack need clear boundaries between internal and external data.
Open source video
Session management ensures agents act with the correct user permissions and context.
Open source video
Managing user requests in Slack so the agent acts on behalf of the user securely.
Open source video
Source video

Corpus-derived skill authoring: turning historical edits into agent skills and rubrics

Research question

Can an archive of reviewed professional output serve simultaneously as the skill payload, training signal, and acceptance criterion, and how should staleness be detected?

Why

It shifts skill authoring from prompt engineering to corpus-derived behavior, making the historical archive both the capability and its eval, but risks drift when styles or standards change.

Turning 30,000 historical edits into a skill inside the Every agent for Google Docs editing.
Open source video
Historical edits are turned into skills inside the Every agent.
Open source video
Capture expert workflows by converting past work samples into evaluation rubrics and agent prompts.
Open source video
Source video

Beyond pre-AI benchmarks: measuring individual job enhancement

Research question

What role-level metrics (scope, velocity, rework rate) correlate with task-level benchmark scores and actual productivity gains?

Why

Benchmarks measure pre-AI tasks and miss individual amplification; if agents absorb task-level work, the unit of value becomes change in a person's scope or velocity, requiring different eval design.

Benchmarks measure pre-AI tasks and do not reflect individual job enhancement.
Open source video
Engineering teams using AI agents to pull forward roadmaps by two years.
Open source video
Engineering teams scale faster with AI agents, a pattern coming to general knowledge work.
Open source video
Source video

Managed agent primitives versus custom orchestration: boundary contracts and lock-in

Research question

What isolation guarantees, resource limits, and persistence semantics must managed agent primitives expose to be safe for production knowledge-work agents?

Why

Teams consume sandboxes, memory, and session control as managed primitives, but the security and lifecycle boundaries become a load-bearing contract; hidden complexity in multi-agent systems motivates the buy decision.

Infrastructure is hard, and building multi-agent systems has hidden complexities.
Open source video
Cloud Managed Agents provide sandboxes, memory, and session control out of the box.
Open source video
Running agents on the same infrastructure as production speeds up development.
Open source video
Source video

Article ideas

4

The Only Benchmark That Matters Is Your Editor's Inbox

Generic AI benchmarks measure pre-AI tasks, but subjective knowledge work is governed by a specific expert's taste; the predictive eval is a per-expert harness built from historical accept/reject patterns like Kate Bench.

Angle

Argue that public leaderboards are misleading for knowledge work and show how to build n=1/org benchmarks from archived edits and vibe checks.

Source video

Your Agent Is Not a Service Account: Identity Propagation in Multi-Tenant Surfaces

Sandboxing is necessary but not sufficient for agents in Slack; secure delegation requires session-scoped identity and permission propagation so tool calls inherit the requesting user's authority and internal/external data boundaries.

Angle

Expose the confused-deputy and data-leak failure modes when agents act with ambient identities, and prescribe a session-contract architecture.

Source video

Skills From the Archive: Why Your Next Agent Capability Is Already in Your Edit History

The most reliable agent skills are mined from past reviewed output because the archive can serve as both skill payload and acceptance criterion, collapsing training data and eval into one artifact.

Angle

Show the recipe: take 30,000 historical edits, encode them into a skill plus rubric, and measure against held-out edits; discuss staleness and drift risks.

Source video

Stop Hand-Rolling Sandboxes: Agent Infrastructure Is the New Managed Database

Teams should consume managed agent primitives for sandboxes, memory, and session control, spend engineering on workflow/skill logic, and accept platform-boundary and lock-in tradeoffs.

Angle

Make the build-vs-buy argument concrete: hidden multi-agent complexity vs. managed primitive contracts and lifecycle dependence.

Source video

Project ideas

4

ExpertBench Harness

beyond-evals

A per-expert eval harness built from a corpus of historical accepted/rejected edits predicts production accept rate on new editing tasks better than generic capability benchmarks.

Proof of concept

Ingest 30,000 historical Google Docs edits from one expert, split into train/holdout, generate agent suggestions, and track human accept/reject; compare harness score to public benchmark score.

Measurement

Spearman correlation between harness score and production accept rate across 5 experts; false-positive suggestion rate.

Source video

SessionIdentity Proxy for Slack Agents

gatehouse

A session-scoped identity propagation layer that binds each agent action to the requesting user's OAuth token and data-classification context prevents confused-deputy and cross-tenant leakage without breaking task success.

Proof of concept

Wrap a Slack agent runtime; for each message, mint a session with user identity, permissions, and internal/external data labels; enforce at every tool call; run red-team scenarios.

Measurement

Red-team success rate (privilege escalation and data leakage) and task completion rate versus an ambient-identity baseline.

Source video

Archive-to-Skill Compiler

new

Historical professional output can be compiled into an agent skill plus evaluation rubric that achieves high held-out acceptance and detects drift between the archive and current human judgment.

Proof of concept

Take 30,000 historical edits, derive a skill, run on held-out edits, and monitor accept/reject telemetry over time to detect distribution shift.

Measurement

Held-out acceptance rate, edit-distance reduction, and time-to-drift detection.

Source video

Maintenance Economics Instrument

movement-lab

There is a measurable maintenance-to-value threshold above which centralized agent wrappers outperform per-employee experimentation for org-wide knowledge work.

Proof of concept

Instrument maintenance cost, usage, and defect rate for wrapper-based vs. individual agent deployments across teams; model the crossover point.

Measurement

Maintenance cost per workflow, adoption rate, defect/rework rate, and value per engineer-hour.

Source video

Architectural implications

3

Sandbox and tool-call isolation is used to let experiments run without touching production.

Before

Testing agent experiments risks impacting live production systems.

After

Sandboxes and tool calls are isolated per experiment while reusing the same infrastructure layer.

Consequence

Experimentation velocity increases without a separate staging stack, but isolation guarantees become a load-bearing contract that must be verifiable.

Source video

Session management carries user identity and permission context into agent actions.

Before

Agents act with a single ambient/service identity, and permissions are checked loosely at the tool boundary.

After

Each session binds an agent action to the requesting user's identity and context in shared surfaces like Slack.

Consequence

Authorization, audit, and data-boundary enforcement move into the session/runtime layer rather than being ad hoc per tool.

Source video

Managed agent primitives (sandboxes, memory, session control) are consumed rather than built.

Before

Teams spend engineering bandwidth on custom sandbox orchestration and multi-agent plumbing.

After

Teams consume managed primitives and focus engineering on skills and workflows.

Consequence

Faster feature delivery and built-in security sandboxing, at the cost of dependence on the managed platform's boundaries and lifecycle.

Source video

Tradeoffs and failure modes

3

Managed agent infrastructure vs. custom orchestration

Benefit

Accelerates feature delivery and ensures proper security sandboxing without owning sandbox orchestration.

Cost or risk

Dependence on the managed platform for sandbox, memory, and session semantics; less control and potential lock-in.

Leverage existing managed infrastructure to avoid spending engineering bandwidth on custom sandbox orchestration.
Open source video
Source video

Centralized agent wrappers vs. per-employee experimentation

Benefit

Standardizes workflows and preserves value as individual maintenance burden rises.

Cost or risk

Individual experimentation with open-source LLMs fades when maintenance is high, and centralized wrappers may suppress fast-moving edge experimentation.

Individual experimentation with open-source LLMs fades when maintenance is high; centralized agents standardize workflows.
Open source video
Source video

Agents acting in shared surfaces (Slack)

Benefit

Users can delegate requests to an agent inside existing collaboration tools.

Cost or risk

Boundary failures between internal and external data and incorrect acting identity can leak sensitive knowledge or over-authorize actions.

Agents acting in Slack need clear boundaries between internal and external data.
Open source video
Source video

Open questions

4

How should productivity be measured for knowledge work once agents absorb task-level execution?

Why unresolved

The speakers note benchmarks measure pre-AI tasks and miss individual job enhancement, but no alternative measurement framework is given.

Research direction

Design role-level eval metrics (scope, velocity, rework rate) and correlate them with task-level benchmark scores.

Source video

Does codifying an expert's taste into a skill preserve quality as styles, tools, and the expert's own standards drift?

Why unresolved

The summary describes building the skill from 30,000 historical edits but not how it is kept current or how staleness is detected.

Research direction

Track accept/reject telemetry over time to detect distribution shift between the skill's historical corpus and current human judgment.

Source video

What is the minimal contract that makes session-scoped identity safe for agents acting on behalf of users in multi-tenant surfaces?

Why unresolved

Session management is asserted to ensure correct permissions and context, but the summary gives no enforcement mechanism or failure model.

Research direction

Prototype a session-identity propagation layer and adversarially test confused-deputy and cross-tenant leakage scenarios.

Source video

At what maintenance cost does centralized agent standardization beat decentralized experimentation?

Why unresolved

The claim that individual experimentation fades under maintenance cost is stated without thresholds or measurements.

Research direction

Instrument the maintenance-to-value ratio of wrapper-based vs. individual agent deployments across teams.

Source video

Key claims

7
causalVerification needed

Turning 30,000 historical editorial edits into a skill inside the Every agent enables Google Docs editing that preserves editorial standards.

Evidence

Turning 30,000 historical edits into a skill inside the Every agent for Google Docs editing.

Question

What acceptance rate does the skill achieve against held-out historical edits and on new editing tasks?

Source video
comparativeVerification needed

Deploying agents across an entire organization is much harder than single-user usage.

Evidence

Deploying agents across an entire organization is much harder than single-user usage.

Question

What specific failure modes and cost components dominate when scaling from single-user to org-wide deployment?

Source video
opinionVerification needed

Benchmarks measure pre-AI tasks and do not reflect individual job enhancement.

Evidence

Benchmarks measure pre-AI tasks and do not reflect individual job enhancement.

Question

Can a benchmark be constructed whose scores correlate with measured productivity gains per role?

Source video
factualVerification needed

Engineering teams using AI agents pull forward roadmaps by two years.

Evidence

Engineering teams using AI agents to pull forward roadmaps by two years.

Question

Is the two-year figure a measured outcome, an estimate, or an anecdote, and against what baseline?

Source video
causalVerification needed

Session management ensures agents act with the correct user permissions and context.

Evidence

Session management ensures agents act with the correct user permissions and context.

Question

What enforcement mechanism binds an agent action to the correct user identity and prevents privilege escalation?

Source video
factualVerification needed

Cloud Managed Agents provide sandboxes, memory, and session control out of the box.

Evidence

Cloud Managed Agents provide sandboxes, memory, and session control out of the box.

Question

What are the isolation guarantees, resource limits, and persistence semantics of these managed primitives?

Source video
opinionVerification not requested

Agents need personality design to feel like working with real colleagues.

Evidence

Agents need personality design to feel like working with real colleagues.

Source video

Connections

3