pegrex-concolic
Run code concretely, collect branch traces, and flip branches by solving path constraints.
Skill by ovoxnox
Chalk Labs
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Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/ovoxnox-pegrex-concolic
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Use cases: testing
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/pegrex-concolic
What's inside
- Skill name
pegrex-concolic- Description
- Run code concretely, collect branch traces, and flip branches by solving path constraints. Use for test generation and coverage-driven exploration.
- License
- MIT
- Instructions
- 10 lines in SKILL.md · view on GitHub
Files (1)
- SKILL.md
SKILL.md (first lines)
# concolic execution
- `concolic.trace_fn(fn, *args, source=SRC)` -> {"result", "branches":
[(line, condition, truth)], "opaque_branches": n}.
- `flip_and_verify(fn, run, branch_index, source=SRC)` solves the
negated branch via Fourier-Motzkin, RE-RUNS, and confirms the flip.
- Opaque predicates are reported, never guessed. Infeasible flips say
so. Args are bound by signature order, not dict order.From ovoxnox/pegrex, MIT.
More from ovoxnox/pegrex
- 0.565score
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Integrate pegrex with AI agents via its three protocols (JSON-lines service, ACP, MCP with router).
SkillAFreshness: AClaude Code +9 - 0.565score
pegrex-audit
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Audit source files for security issues with the pegrex engine (patterns + taint + SCA).
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pegrex-coverage
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Turn coverage data into constraint-aware gap analysis and synthesized tests.
SkillAFreshness: AClaude Code +9 - 0.565score
pegrex-specs
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Generate AI-consumable spec schemas (multi-view analysis with prioritized, machine-checkable tasks).
SkillAFreshness: AClaude Code +9 - 0.565score
pegrex-translate
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Verify cross-language translations and refactors with certificates.
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pegrex-verify
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Prove patches and diffs correct with verify_patch, semantic_diff, and the CEGIS repair loop.
SkillAFreshness: AClaude Code +9 - 0.556score
pegrex-safety
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Constrain coding-agent actions with verified policies.
SkillAFreshness: AClaude Code +9 - 0.556score
pegrex-twin
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Query the codebase twin (call graph, ownership, guards, cognitive complexity) and the org twin (teams x compliance x complexity).
SkillAFreshness: AClaude Code +9 - 0.556score
pegrex-ml
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Verify ML graph equivalence after quantization or pruning with interval bounds plus concrete simulation.
SkillAFreshness: AClaude Code +9 - 0.556score
pegrex-infra
ovoxnox
Verify infrastructure-as-code (Zelkova-style IAM evaluation, Terraform findings) and sign provenance (SLSA-style attestations).
SkillAFreshness: AClaude Code +9 - 0.556score
pegrex-legacy
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Modernize COBOL and Fortran to certified Python (or back).
SkillAFreshness: AClaude Code +9 - 0.553score
pegrex-compliance
ovoxnox
GDPR data-flow findings, SOC2 control presence, legal-deadline CI artifacts.
SkillAFreshness: AClaude Code +9
Signals
- Stars
- 0
- Forks
- 0
- Open issues
- 0
- Last commit (this folder)
- Oct 24, 2026 (7 days ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- MIT
- Repository
- github.com/ovoxnox/pegrex
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
More from ovoxnox
- 0.565score
pegrex-agents
ovoxnox
Integrate pegrex with AI agents via its three protocols (JSON-lines service, ACP, MCP with router).
SkillAFreshness: AClaude Code +9 - 0.565score
pegrex-audit
ovoxnox
Audit source files for security issues with the pegrex engine (patterns + taint + SCA).
SkillAFreshness: AClaude Code +9 - 0.565score
pegrex-coverage
ovoxnox
Turn coverage data into constraint-aware gap analysis and synthesized tests.
SkillAFreshness: AClaude Code +9 - 0.565score
pegrex-specs
ovoxnox
Generate AI-consumable spec schemas (multi-view analysis with prioritized, machine-checkable tasks).
SkillAFreshness: AClaude Code +9 - 0.565score
pegrex-translate
ovoxnox
Verify cross-language translations and refactors with certificates.
SkillAFreshness: AClaude Code +9 - 0.559score
pegrex-verify
ovoxnox
Prove patches and diffs correct with verify_patch, semantic_diff, and the CEGIS repair loop.
SkillAFreshness: AClaude Code +9
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Cite this page
pegrex-concolic skill. Agent Mart. https://agentmart.dev/skills/ovoxnox-pegrex-concolic (last updated 2026-10-24)