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Reference when user asks why output was truncated or how to bypass compression. Also use before every bash command compression decision.
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Based on SOC occupation classification
Reconstructs session working state from the last saved checkpoint and remember.md. Use immediately after compaction when context is lost. Auto-triggers when: files being edited are unknown, project instructions are unclear, or user says "what happened" / "what were we doing".
Use when Emu fires a Drift Alert. Explains what drift means and how to break out. Auto-triggers on: "drift alert", "going in circles", "stuck", "keeps reading same file", "test won't pass".
Auto-loads when context usage feels high or compaction is approaching. Teaches token-efficient behavior. Triggers on: "context is low", "running out of space", slow responses, or after 30+ turns in a session.
Reduces output token usage by injecting terse-mode instructions. Removes filler phrases, trailing summaries, and converts prose to bullets. Configurable: off / lite / full / ultra. Auto-triggers at session start or when context is running low.
| name | compression-rules |
| description | Reference when user asks why output was truncated or how to bypass compression. Also use before every bash command compression decision. |
| allowed-tools | ["Read","Bash"] |
<compression_rules> IF "npm test" OR "yarn test" OR "pnpm test" OR "vitest" OR "jest": Append: 2>&1 | tail -n 40
IF "python -m pytest" OR "pytest" OR "python -m unittest": Append: 2>&1 | grep -E "(PASSED|FAILED|ERROR|passed|failed)" | tail -n 30
IF "go test": Append: 2>&1 | grep -E "(^ok|^FAIL|PASS|FAIL|panic)" | tail -n 30
IF "mvn test" OR "gradle test": Append: 2>&1 | grep -E "(BUILD |Tests run:|Test .*FAILED)" | tail -n 20
IF "dotnet build" OR "dotnet test": Append: 2>&1 | grep -E "(Build succeeded|FAILED|Passed|Failed|Test Run)" | tail -n 20
IF "npm install" OR "yarn" OR "pnpm install": Append: 2>&1 | grep -E "(ERR|error|added|removed)" | tail -n 20
IF "cargo build" OR "cargo test": Append: 2>&1 | grep -E "(error|warning|test result)" | tail -n 30
IF "make" OR "make build": Append: 2>&1 | grep -E "(Error|error|warning|make:)" || echo "Build succeeded"
IF "docker build": Append: 2>&1 | grep -E "(^Step |^Successfully |^#[0-9]+ |ERROR)" | tail -n 30
IF "terraform plan": Append: 2>&1 | grep -E "(Plan:|No changes|Error)" | tail -n 10
IF "eslint" OR "npx eslint": Append: 2>&1 | grep -E "(✖|error|warning|problems)" | head -n 20
IF "tsc" OR "npx tsc": Append: 2>&1 | grep -E "(error TS|Found [0-9])" | head -n 20
IF "git log" AND no "-n" flag AND no "--oneline": Add: --oneline -20
IF "find ." AND no "head" pipe: Append: | head -n 30
IF "cat [file]" AND file >100 lines: Replace: head -n 80 [file] && echo "---[N lines total]---" </compression_rules>
FULL: prefix → remove prefix, apply zero compression, run as-is. Tell user: "Running uncompressed. Full output will enter context."<escalate_to_sonnet> IF command >200 chars AND not in any rule: "ESCALATE_TO_SONNET: complex command, compression unclear" </escalate_to_sonnet>
