compact-handoff

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Aktualisiert11. Juli 2026 um 09:09

This skill should be used when a session is being compacted/summarized (context is full or the user runs a compact command), or when writing any handoff summary that a later session or subagent will continue from. Defines what to preserve versus drop so the continuation doesn't waste tokens re-reading files and re-deriving state. Part of the HarnessTrim token-economy stack; the OpenCode adapter injects this guidance automatically via experimental.session.compacting.

Installation

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Quelle

giuliastro

giuliastro/HarnessTrim

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Verwandte BerufeSOC

Basierend auf der SOC-Berufsklassifikation

SoftwareentwicklerInformatik- und Mathematikberufe·SOC 15-1252

SKILL.md

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name	compact-handoff
description	This skill should be used when a session is being compacted/summarized (context is full or the user runs a compact command), or when writing any handoff summary that a later session or subagent will continue from. Defines what to preserve versus drop so the continuation doesn't waste tokens re-reading files and re-deriving state. Part of the HarnessTrim token-economy stack; the OpenCode adapter injects this guidance automatically via experimental.session.compacting.
version	0.1.0
license	MIT

compact-handoff

A compaction summary is the seed context for everything that follows. If it drops the wrong things, the next turns re-read files, re-run searches, and re-decide settled questions — spending far more tokens than the summary ever saved. Optimize the summary for resumption, not brevity.

Preserve

The task and its acceptance criteria — what "done" means, verbatim if the user stated it.
Decisions made and alternatives rejected — with the reason, so they aren't re-litigated.
Hard-won specifics — exact file paths, symbol names, commands that worked, config values, version numbers, API signatures discovered. These are the expensive-to-rediscover facts.
Current state — what is done, what is verified (and how), what is still failing and the last error seen.

Drop

Step-by-step narration of what was already done ("first I opened X, then I ran Y").
Raw tool output that has already been acted on (test logs, file dumps, search results).
Anything trivially reconstructable from the current diff or a single cheap command.
Restatements of the codebase's structure that the next session can read directly.

Shape

Write the summary as short labeled sections (Task / Decisions / Key facts / State), not prose. A resuming agent should be able to act from it without re-reading the whole transcript.

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name	compact-handoff
description	This skill should be used when a session is being compacted/summarized (context is full or the user runs a compact command), or when writing any handoff summary that a later session or subagent will continue from. Defines what to preserve versus drop so the continuation doesn't waste tokens re-reading files and re-deriving state. Part of the HarnessTrim token-economy stack; the OpenCode adapter injects this guidance automatically via experimental.session.compacting.
version	0.1.0
license	MIT

compact-handoff

Preserve

The task and its acceptance criteria — what "done" means, verbatim if the user stated it.
Decisions made and alternatives rejected — with the reason, so they aren't re-litigated.
Hard-won specifics — exact file paths, symbol names, commands that worked, config values, version numbers, API signatures discovered. These are the expensive-to-rediscover facts.
Current state — what is done, what is verified (and how), what is still failing and the last error seen.

Drop

Step-by-step narration of what was already done ("first I opened X, then I ran Y").
Raw tool output that has already been acted on (test logs, file dumps, search results).
Anything trivially reconstructable from the current diff or a single cheap command.
Restatements of the codebase's structure that the next session can read directly.

Shape

Write the summary as short labeled sections (Task / Decisions / Key facts / State), not prose. A resuming agent should be able to act from it without re-reading the whole transcript.