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hermes - 💡(How to fix) Fix hermes update emits unicode-animations ANSI demo in non-interactive logs [1 pull requests]

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Running hermes update can emit a large unicode-animations ANSI demo into the terminal/log output before the actual update status appears.

This makes automation logs very noisy and hard to parse, especially when hermes update is called by system maintenance scripts.

Root Cause

The update itself completed successfully, but the ANSI demo adds hundreds of control-sequence-heavy lines to logs and obscures actual warnings/errors.

Fix Action

Fixed

Code Example

==> [33] Atualizar Hermes  +01:35
  Hermes em: /home/bitter/.local/bin/hermes
...
BRAILLE ANIMATIONS
...
npx unicode-animations                  demo all spinners
npx unicode-animations --list           list all spinners
npx unicode-animations --web            open in browser
...
Using Python 3.11.15 environment at: venv
Resolved 100 packages in 223ms
...
⚕ Updating Hermes Agent...
RAW_BUFFERClick to expand / collapse

Summary

Running hermes update can emit a large unicode-animations ANSI demo into the terminal/log output before the actual update status appears.

This makes automation logs very noisy and hard to parse, especially when hermes update is called by system maintenance scripts.

Environment

  • OS: Arch Linux
  • Hermes: Hermes Agent v0.14.0 (2026.5.16)
  • Command invoked by wrapper: hermes update
  • Run timestamp: 2026-05-24 23:50 America/Sao_Paulo

Observed output excerpt

==> [33] Atualizar Hermes  +01:35
  Hermes em: /home/bitter/.local/bin/hermes
...
BRAILLE ANIMATIONS
...
npx unicode-animations                  demo all spinners
npx unicode-animations --list           list all spinners
npx unicode-animations --web            open in browser
...
Using Python 3.11.15 environment at: venv
Resolved 100 packages in 223ms
...
⚕ Updating Hermes Agent...

Expected behavior

hermes update should keep output focused on update progress, or suppress interactive demos/spinners when stdout/stderr are being captured by an automation wrapper.

A --no-ansi, --plain, or automatic non-interactive mode would also solve this.

Why this matters

The update itself completed successfully, but the ANSI demo adds hundreds of control-sequence-heavy lines to logs and obscures actual warnings/errors.

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FAQ

Expected behavior

hermes update should keep output focused on update progress, or suppress interactive demos/spinners when stdout/stderr are being captured by an automation wrapper.

A --no-ansi, --plain, or automatic non-interactive mode would also solve this.

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