Pith Number

pith:B3K44QGD

pith:2026:B3K44QGDFCGUJI7CNIAAGTVGMO

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A Self-Evolving Framework for Efficient Terminal Agents via Observational Context Compression

Boyu Feng, Chenghua Lin, Jian Yang, Jincheng Ren, Kang Zhu, Riza Batista-Navarro, Ruibin Yuan, Shu Xu, Siwei Wu, Wei Zhang, Yizhi Li

Terminal agents can self-discover compression rules from their interaction histories to filter noise while keeping task-critical signals.

arxiv:2604.19572 v3 · 2026-04-21 · cs.CL

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\pithnumber{B3K44QGDFCGUJI7CNIAAGTVGMO}

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

TACO automatically discovers, refines, and reuses structured compression rules from interaction trajectories, enabling workflow-adaptive filtering of low-value terminal outputs while preserving task-relevant observations and yielding 1%-4% accuracy gains across strong agentic models on TerminalBench.

C2weakest assumption

That automatically discovered compression rules from limited interaction trajectories will generalize reliably across highly heterogeneous terminal environments without discarding critical task signals, as the abstract positions this as the key advantage over fixed heuristics.

C3one line summary

TACO is a self-evolving, plug-and-play compression framework that filters low-value terminal observations while preserving task-relevant signals, yielding 1-4% accuracy gains and better token efficiency on TerminalBench and related benchmarks.

References

15 extracted · 15 resolved · 0 Pith anchors

[1] Seed (reused) 2023 · doi:10.18653/v1/2025.emnlp-main.489

[2] selected_rule_ids

[3] modified_rules

[4] "new_rules": For command types not covered by any historical rule, create new rules Requirements: - Only create rules for HIGH-OUTPUT commands (pip, apt, make, pytest, git, docker, etc.) - Do NOT crea 2000

[5] Have a trigger_regex that matches this CATEGORY of command (not just this exact command)

Receipt and verification

First computed	2026-05-20T00:01:41.634182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ed5ce40c3288d44a3e26a00034ea663a9111eb0e4bb376333fcc4a39f2e5412

Aliases

arxiv: 2604.19572 · arxiv_version: 2604.19572v3 · doi: 10.48550/arxiv.2604.19572 · pith_short_12: B3K44QGDFCGU · pith_short_16: B3K44QGDFCGUJI7C · pith_short_8: B3K44QGD

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/B3K44QGDFCGUJI7CNIAAGTVGMO \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 0ed5ce40c3288d44a3e26a00034ea663a9111eb0e4bb376333fcc4a39f2e5412

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3ae22c766a9e5c810453398c64874754697c93fd7305ccc840b4d9aaecde3ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-04-21T15:25:54Z",
    "title_canon_sha256": "d3e4de9d36b39285d0d6280bfc42e29a27bf93c6a6ed0b478dac9ecc0afeead0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.19572",
    "kind": "arxiv",
    "version": 3
  }
}