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Evidence brief

Does Claude drift from project instructions more easily after Opus 5?

The poster feels that after Opus 5, Claude is still strong overall but more often forgets formatting rules, project conventions, and step order in Claude.md, requiring repeated reminders. The discussion is about whether the new model is less stable in long-context instruction following.

Published
Updated
Editorial
Frontline Lab
Source
Original public source
Source author
Superb-Bit2412
Related topics
0
Collected
2026-08-12

Frontline Lab summary and source

Editorial summary

The poster feels that after Opus 5, Claude is still strong overall but more often forgets formatting rules, project conventions, and step order in Claude.md, requiring repeated reminders. The discussion is about whether the new model is less stable in long-context instruction following.

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

Source attributionSuperb-Bit2412

Open the original source

Related published evidence

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

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Original source
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Original source
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Original source