claude

glyphdown

Two-register prompting convention for Claude Code: dense ASCII form for internal reasoning, normal prose for user-visible output. Deterministic codec, runs locally, no API key and no vendor account. Ships a skill and eight hooks across five events enabled on install (SessionStart, UserPromptSubmit, PreToolUse, PreCompact, PostToolUse), plus a lossless tool-result codec (ANSI strip + JSON minify + blank-collapse + trailing marker + data-shape guard + schema-tag prefix + break-even guard). Fail-open on every path.

2 on GitHubby Mikko Parkkolav0.6.0PolyForm-Noncommercial-1.0.0updated 1 month agoToken Optimization

Not in a marketplace yet, so it loads for one session with --plugin-dir.

Plugin glyphdown in MikkoParkkola/glyphdown. Commands read from the repo's manifest — 1 month ago.

This plugin runs code on your machine — its hooks fire automatically on events like tool use and it starts local MCP servers. The exact commands are listed below; read them before installing.

What it installs

Skills (1)

  • glyphdown-mode

    Activate a two-register prompting convention: dense ASCII form for the model's internal reasoning, normal human-readable prose for user-visible output. Triggers on phrases like "use glyphdown", "compact thinking", "dense reasoning", "glyphdown mode", "think compact". The plugin does NOT measure its

Slash commands (2)

  • /glyphdown:glyphdown-set-level
  • /glyphdown:glyphdown-stats

MCP servers (1)

  • glyphdown

    runs: sh ${CLAUDE_PLUGIN_ROOT}/bin/glyphdown-mcp.sh

Hooks (8)

  • PreToolUse

    sh ${CLAUDE_PLUGIN_ROOT}/hooks/_run.sh ${CLAUDE_PLUGIN_ROOT}/hooks/PreToolUse/glyphdown_history_dedup.py

  • PreToolUse

    sh ${CLAUDE_PLUGIN_ROOT}/hooks/_run.sh ${CLAUDE_PLUGIN_ROOT}/hooks/PreToolUse/restart_batcher_detect.py

  • SessionStart

    sh ${CLAUDE_PLUGIN_ROOT}/hooks/_run.sh ${CLAUDE_PLUGIN_ROOT}/hooks/SessionStart/glyphdown-skill-loader.py

  • SessionStart

    sh ${CLAUDE_PLUGIN_ROOT}/hooks/_run.sh ${CLAUDE_PLUGIN_ROOT}/hooks/SessionStart/restart_batcher_clear.py

  • UserPromptSubmit

    sh ${CLAUDE_PLUGIN_ROOT}/hooks/_run.sh ${CLAUDE_PLUGIN_ROOT}/hooks/UserPromptSubmit/glyphdown-mode-detector.py

  • UserPromptSubmit

    sh ${CLAUDE_PLUGIN_ROOT}/hooks/_run.sh ${CLAUDE_PLUGIN_ROOT}/hooks/UserPromptSubmit/glyphdown-stats-handler.py

  • PreCompact

    sh ${CLAUDE_PLUGIN_ROOT}/hooks/_run.sh ${CLAUDE_PLUGIN_ROOT}/hooks/PreCompact/glyphdown-compact-instructions.py

  • PostToolUse

    sh ${CLAUDE_PLUGIN_ROOT}/hooks/_run.sh --rust posttooluse ${CLAUDE_PLUGIN_ROOT}/hooks/PostToolUse/glyphdown_codec.py

View source on GitHub

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