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Evidence brief

Codex misleads users by following an outdated AGENTS.md

The poster shares that Codex strictly followed old AGENTS.md instructions and went looking for a deleted Docker service. The actual project had moved from Compose-managed Postgres to Testcontainers, but the documentation was not updated, causing Codex to act on outdated information and prompting discussion of AI coding agents’ reliance on project instruction files.

Published
Updated
Editorial
Frontline Lab
Source
Original public source
Source author
New-Needleworker1755
Related topics
0
Collected
2026-08-18

Frontline Lab summary and source

Editorial summary

The poster shares that Codex strictly followed old AGENTS.md instructions and went looking for a deleted Docker service. The actual project had moved from Compose-managed Postgres to Testcontainers, but the documentation was not updated, causing Codex to act on outdated information and prompting discussion of AI coding agents’ reliance on project instruction files.

This brief preserves the original source so the summary and editorial context can be checked independently.

Source attributionNew-Needleworker1755

Open the original source

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Relationships are derived from shared topics, entities, categories, tags, and community context; every result remains independently source-linked.

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