Fix file permissions from read-only to read-write (0o444 -> 0o644)

[dant2021]

Summary

• Change file permission bits from 0o444 (read-only for all) to 0o644 (read-write for owner, read-only for group/others) in src/fuse_fs.rs

Test plan

• Mount the filesystem and verify files are accessible with the correct permissions (-rw-r--r--)

[simedw]

any downsides with this @rslota
(the reason for this is that when the agent copy the files over from /mnt/lazy it keeps the same permission, which leads to a bunch of errors)

[rslota]

any downsides with this @rslota (the reason for this is that when the agent copy the files over from /mnt/lazy it keeps the same permission, which leads to a bunch of errors)

quoting what I write on slack:

but... this may have a very bad effect on LLM in general, suggesting those files are writable, but they aren't
better fix is to make askexcel skill change mod or askexcel itself do it

[simedw]

can we alias cp to cp --no-preserve=mode ?

[dant2021]

but... this may have a very bad effect on LLM in general, suggesting those files are writable, but they aren't
better fix is to make askexcel skill change mod or askexcel itself do it

I disagree here, for multiple reasons.

• all the skills and scripts in the repo are 644.
• there might be other skills that copy the input, if we fix in ask excel its more duplication and possible to miss some
• llm's never check metadata before attempting to read/write to a file (otherwise claude would stop trying to read 50MB jsons)

The files are not writable because blocked at directory level and that also described in the system prompt.
sandcastle/worker/system_prompt_infra.py

 `/mnt/lazy` - Read-only mount for large input files (downloaded on first access).

[simedw]

let's keep an eye on this to make sure this doesn't introduce any confusion for the model

[dant2021]

can we alias cp to cp --no-preserve=mode ?

fyi this would not work either because some agent runs might write a shutil in python