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a2964d7a20
Copilot CLI v1.0.11 reads `additionalContext` from sessionStart hook output, but the session-start script only emits the Claude Code-specific nested format. Add COPILOT_CLI env var detection so Copilot CLI gets the SDK-standard top-level `additionalContext` while Claude Code continues getting `hookSpecificOutput`. Based on PR #910 by @culinablaz.
58 lines
2.8 KiB
Bash
Executable File
58 lines
2.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SessionStart hook for superpowers plugin
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set -euo pipefail
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# Determine plugin root directory
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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PLUGIN_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
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# Check if legacy skills directory exists and build warning
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warning_message=""
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legacy_skills_dir="${HOME}/.config/superpowers/skills"
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if [ -d "$legacy_skills_dir" ]; then
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warning_message="\n\n<important-reminder>IN YOUR FIRST REPLY AFTER SEEING THIS MESSAGE YOU MUST TELL THE USER:⚠️ **WARNING:** Superpowers now uses Claude Code's skills system. Custom skills in ~/.config/superpowers/skills will not be read. Move custom skills to ~/.claude/skills instead. To make this message go away, remove ~/.config/superpowers/skills</important-reminder>"
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fi
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# Read using-superpowers content
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using_superpowers_content=$(cat "${PLUGIN_ROOT}/skills/using-superpowers/SKILL.md" 2>&1 || echo "Error reading using-superpowers skill")
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# Escape string for JSON embedding using bash parameter substitution.
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# Each ${s//old/new} is a single C-level pass - orders of magnitude
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# faster than the character-by-character loop this replaces.
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escape_for_json() {
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local s="$1"
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s="${s//\\/\\\\}"
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s="${s//\"/\\\"}"
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s="${s//$'\n'/\\n}"
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s="${s//$'\r'/\\r}"
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s="${s//$'\t'/\\t}"
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printf '%s' "$s"
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}
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using_superpowers_escaped=$(escape_for_json "$using_superpowers_content")
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warning_escaped=$(escape_for_json "$warning_message")
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session_context="<EXTREMELY_IMPORTANT>\nYou have superpowers.\n\n**Below is the full content of your 'superpowers:using-superpowers' skill - your introduction to using skills. For all other skills, use the 'Skill' tool:**\n\n${using_superpowers_escaped}\n\n${warning_escaped}\n</EXTREMELY_IMPORTANT>"
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# Output context injection as JSON.
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# Cursor hooks expect additional_context (snake_case).
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# Claude Code hooks expect hookSpecificOutput.additionalContext (nested).
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# Copilot CLI (v1.0.11+) and others expect additionalContext (top-level, SDK standard).
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# Claude Code reads BOTH additional_context and hookSpecificOutput without
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# deduplication, so we must emit only the field the current platform consumes.
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#
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# Uses printf instead of heredoc to work around bash 5.3+ heredoc hang.
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# See: https://github.com/obra/superpowers/issues/571
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if [ -n "${CURSOR_PLUGIN_ROOT:-}" ]; then
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# Cursor sets CURSOR_PLUGIN_ROOT (may also set CLAUDE_PLUGIN_ROOT)
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printf '{\n "additional_context": "%s"\n}\n' "$session_context"
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elif [ -n "${CLAUDE_PLUGIN_ROOT:-}" ] && [ -z "${COPILOT_CLI:-}" ]; then
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# Claude Code sets CLAUDE_PLUGIN_ROOT without COPILOT_CLI
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printf '{\n "hookSpecificOutput": {\n "hookEventName": "SessionStart",\n "additionalContext": "%s"\n }\n}\n' "$session_context"
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else
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# Copilot CLI (sets COPILOT_CLI=1) or unknown platform — SDK standard format
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printf '{\n "additionalContext": "%s"\n}\n' "$session_context"
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fi
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exit 0
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