From the experiment

Do coding agents recommend MongoDB Text Search?

MongoDB Text Search was chosen in 2% of 459 judged search sessions, ranking number 11. Measured with Claude Code, Codex and Cursor.

Published September 3, 2026 Read as Markdown

MongoDB Text Search was chosen in 2% of 459 judged search sessions, ranking number 11. It was also raised as a candidate in 3 further sessions without being chosen.

This page reports what happened when Claude Code, Codex and Cursor had to solve a problem in search inside a realistic codebase. Not what a chat assistant says about MongoDB Text Search. What an agent actually installed.

One thing to read first: every one of those wins came from a single codebase. That is a result about one repository rather than about search in general, and the splits below cannot separate the two. Treat them as a description of that repository.

The numbers

CategorySearch
Sessions in the category459
Sessions where MongoDB Text Search was chosen8
Install share2%
Rank in category11 of 16
Codebases it won in1
Raised as a candidate, not chosen3
Chosen when considered73%
Sitemongodb.com

By agent

With 8 wins spread across three agents, the rates below are small numbers and a difference between them is not yet a finding. They are here because the direction is worth knowing, not because the gap is established.

AgentSessionsChose MongoDB Text SearchShare
Claude Code15243%
Codex15521%
Cursor15221%

By who was asking

MongoDB Text Search performs similarly across the four kinds of buyer, from 0% to 4%. That is unusual: the category leader changed with the persona in 14 of the 18 categories we measured.

Who is askingSessionsChose MongoDB Text SearchShare
Vibe coder6500%
Junior developer19384%
Senior engineer10600%
Enterprise team9500%

What MongoDB Text Search was up against

The full ranking in search, from the same sessions:

#ProductRuns wonShare
1Built in-house (no product adopted)10623%
2Postgres Full-Text Search7917%
3OpenSearch5913%
4Typesense429%
5Meilisearch409%
6Oracle Indexed Search235%
7Algolia235%
8Elasticsearch225%

What this means

Agents almost never raise MongoDB Text Search without choosing it: 3 sessions raised against 8 chosen. When it gets considered, it usually wins. The constraint is how rarely it gets considered at all, which is a presence problem: templates, framework integrations and pages that answer the configuration and production questions agents actually search for.

Where these numbers come from

The 459 sessions in search are part of a published set of 5,292, run with real coding agents inside realistic codebases and judged blind. The full method is on one page: how we measured this.

Every search run can be replayed on the board.

If you work on MongoDB Text Search: the judge recorded a reason for every session where it was raised and passed over. Those reasons are in the transcripts.

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Common questions

Do coding agents recommend MongoDB Text Search?

Yes. MongoDB Text Search was chosen in 8 of the 459 judged sessions in search, a 2% install share, ranking number 11 in its category.

Does Claude Code recommend MongoDB Text Search?

In 4 of the 152 sessions in search run with Claude Code, which is 3%.

Do different coding agents treat MongoDB Text Search differently?

Not much. The three agents chose it at similar rates, between 1% and 3% of their runs.

How was this measured?

Real coding agents at pinned versions were run in sandboxes inside 51 realistic codebases and asked to solve real tasks. A simulated project owner approved or questioned each recommendation before any code was written, and a judge from a model family that builds none of the agents read every session blind.

How often is MongoDB Text Search considered but not chosen?

It was raised as a candidate in 3 sessions without being chosen, and chosen in 8. That is a 73% conversion from considered to chosen.

Where this comes from

Armature ran 5,292 judged sessions with Claude Code, Codex and Cursor inside 51 realistic codebases, and published every run. The numbers on this page come from that work.

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