Compactdiff
see what compaction dropped from an agent session
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HN · launched Aug 8, 2026 · 6 upvotes (top 69%) · 0 views
Niche: ai agent observability platforms · 220 launches, 5 in the last 7 days ▼ -64% · Explore this niche →
Category and tags
- Horizontal
- Observability & eval
- Developer
- AI-native
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 220 launches in ai agent observability platforms →
Could you build this?
Yes This is a specialized diff visualizer tool that compares an agent's pre-compaction prompt/context session against its post-compaction context state.
Discussion
1 comment analyzed.
Competitors mentioned: Claude Code, Codex
Concerns raised: No version history for session compaction, Risk of silently losing constraints during agent sessions
Competitors
Other products that read as similar to this one : 352 launches clear the similarity bar, closest 8 shown.
Attention rank: #230 of 353 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 264 days after the earliest competitor.
- hermes-warm-compaction · github · 2026-10-06 · 42 upvotes · similarity 0.47
- genpark-agent-session-compaction-tokenizer-skill · github · 2026-09-14 · 7 upvotes · similarity 0.47
- huihua · github · 2026-10-05 · 29 upvotes · similarity 0.46
- stalemap · github · 2026-10-19 · 100 upvotes · similarity 0.46
- Stash · hn · 2026-04-23 · 8 upvotes · similarity 0.46
- Sentry · github · 2026-10-02 · 65 upvotes · similarity 0.45
- laya-drift · github · 2026-09-21 · 14 upvotes · similarity 0.44
- FlashCompact: A specialized model for context compaction · yc · 2026-03-18 · 6 upvotes · similarity 0.44
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