# Knowledge Work Usage Taxonomy > Classify agent sessions into the 20-category work taxonomy published in "How people are using Claude Cowork", report category shares as shares of a sample rather than volumes, and attach the sampling and classification caveats that make such a report honest. Use when auditing what an agent is actually being used for, when deciding which tasks to delegate based on a published distribution rather than a guess, or when writing or reviewing a usage-share report. - Skill: `uygnoey/knowledge-work-usage-taxonomy` (Agent Skill, multi-file: 5 files) - Install (CLI): `npx skillmds@latest add uygnoey/knowledge-work-usage-taxonomy` - Raw SKILL.md: https://api.skillmd.com/api/skills/uygnoey/knowledge-work-usage-taxonomy/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - Author: uygnoey (https://skillmd.com/u/uygnoey) - Updated: 2026-09-21 - Page: https://skillmd.com/skills/uygnoey/knowledge-work-usage-taxonomy --- # Knowledge work usage taxonomy A method for answering "what is this agent actually being used for?" in a way that survives scrutiny. It comes from Anthropic's May 2026 study of 1.2 million sampled Claude Cowork sessions, which found that roughly half of all usage is "the work around the work" — tasks that appear across a broad swath of jobs but are rarely anyone's core responsibility. The value here is not the specific percentages. It is the shape of the analysis: a taxonomy that classifies *work* rather than *job titles*, shares reported against a rate-capped sample rather than absolute volumes, and a limitations section that states plainly what the numbers cannot support. ## Instructions ### 1. Classify by the work, not by the person Label each session by the work being done, not by the role of the person doing it. The published taxonomy has no standalone marketing, finance, or HR category — those functions land in "business process and operations", which is part of why that category absorbs a third of everything. Know that tradeoff before you adopt the taxonomy, and record it rather than papering over it. Use the category list and published shares in [references/category-shares.md](references/category-shares.md) as the label set. When a session plausibly fits more than one category, the result depends on the taxonomy's definitions — note which definitions were doing the work. ### 2. Sample deliberately, and say how The study sampled at a capped rate — a fixed maximum number of sessions per hour — rather than as a fixed percentage of traffic. That choice has a direct consequence: every number is a share of sampled sessions and not an absolute volume, and busy hours are somewhat underrepresented relative to quiet ones. Pick a sampling rule, then live with what it permits you to claim. The full method and its consequences are in [references/methodology-and-limits.md](references/methodology-and-limits.md). ### 3. Keep the analysis privacy-preserving The study worked only with aggregate category-level statistics; no individual session was read by a human analyst. If you are classifying real sessions inside an organization, hold to the same line: automated labeling, aggregate reporting, no human reading individual sessions. ### 4. Compute shares, not totals Turn labeled counts into percentage shares of the sample. Report the top category alongside the next one so the gap is visible — in the published data, business process and operations at 33.4% is more than double content creation and copywriting at 16.4%, and that ratio is the finding, not the raw 33.4%. Run [scripts/usage_shares.py](scripts/usage_shares.py) over a JSON object of `{"category": count}` to get a sorted share table plus the top-two gap. ### 5. Read the shape, not just the ranking The published reading is that the top categories are connective in nature: spreadsheets pull disparate data points into a context where they can be read, compared, and tracked; decks convey an idea or decision to a broader audience with varying levels of context; onboarding checklists help a new hire tap into institutional knowledge. Ask what your own top categories have in common before concluding anything from their order. Watch for the delegation boundary in the data. In the published examples, a lawyer delegates document formatting and filing but keeps the legal judgment; a hiring manager delegates scheduling and interview-feedback synthesis but keeps the candidate conversations; a team lead delegates the deck that explains a difficult decision but keeps the decision. Assembly and structure move; expertise does not. ### 6. Write the limitations section before the conclusions A usage-share report without stated limits invites over-reading. At minimum, address taxonomy granularity, shares versus volumes, window choice, the mix of work and personal use, and automated rather than human classification. Use [templates/usage-report.md](templates/usage-report.md), which lays out those sections in order. ### 7. Date the snapshot and expect it to move The published analysis calls itself "a single snapshot" of a product whose "uses are evolving quickly", and commits to republishing as usage shifts. Any report produced this way should carry its window on its face and be treated as a reference point rather than a settled fact. ## Examples ### Auditing an internal deployment A platform team wants to know what 40,000 internal agent sessions were used for. They classify sessions automatically into the 20 categories, discover that business process and operations dominates locally too, and report it as "33% of sampled sessions in a three-week window" rather than "a third of all usage". The report names the labeling pipeline's version, because a mid-window change to that pipeline is exactly what forced the published study to shorten its own window. ### Deciding what to delegate A team lead reads the distribution and reframes their own backlog: the status update, the tracker reconciliation, and the deck explaining a reorg are all assembly-and-structure work that others already delegate at scale. The decision the deck explains is not. They hand over the first three and keep the fourth. ### Comparing two tools honestly An organization runs both a coding agent and a chat-interface agent and wonders why the usage mixes look nothing alike. The published contrast supplies the frame: developers use the coding agent for the core of their role — building, debugging, shipping — and the chat agent for the connective, communications-focused work that surrounds every role, software engineering included. A low software-development share in the chat agent is the expected result, not a failure of adoption. ### Reviewing someone else's usage report A reviewer checks a vendor's usage claims against the checklist in the report template: are these shares or volumes? Was sampling rate-capped? Does the taxonomy split out the categories the conclusions depend on? Were labels human-verified? Three of the four go unanswered, and the review says so. ## Source [How people are using Claude Cowork](https://claude.com/blog/how-people-are-using-claude-cowork) — July 7, 2026