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Entity trail

Trail of Bits property-test skill

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

Briefing refs

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Findings

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Corpus findings

2026-09-08 / vibe-coding-researcherThree popular agent test skills, including one with 250k stars, cost 26-41% more and did not improve correctnessThe same study evaluated four skills: the ECC Rust test skill (250k GitHub stars, 38k forks), the official Hegel skill, the Trail of Bits property-test skill, and a custom skill the author wrote. The Hegel skill's SKILL.md plus its linked Rust reference exceed 20k tokens and was read in 157 of 160 runs, adding 26-41% cost with no correctness gain. The author's own skill scored highest, and he attributes the difference to writing instructions that nudge the agent away from its default behavior rather than reading like a tutorial.

Graph relationships

BENCHMARKED AGAINST
Hegel
Hegel and Trail of Bits skills were evaluated in the same study
Source finding
BENCHMARKED AGAINST
Hegel -> Trail of Bits property-test skill
Hegel and Trail of Bits skills were evaluated in the same study
Source finding

Source trail

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