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trailmark

v0.11.3

Builds source and binary code graphs for security analysis, context slicing, mutation testing, cryptographic protocol modeling, finding triage, and variant analysis.

Claude Code14 Skills

By Scott Arciszewski7.1k GitHub starsUpdated last week

Directory evidence

Runtimes
Claude Code
Parsed components
14 skill or MCP entries
Source updated
Sep 16, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology

Install trailmark for Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install trailmark@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/trailofbits/skills

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/trailmark/.

Plugin files

plugins/trailmark/
├── .claude-plugin/plugin.json
├── skills/audit-augmentation/SKILL.md
├── skills/crypto-protocol-diagram/SKILL.md
├── skills/diagramming-code/SKILL.md
├── skills/genotoxic/SKILL.md
├── skills/graph-evolution/SKILL.md
├── skills/mermaid-to-proverif/SKILL.md
├── skills/slicing-code-context/SKILL.md
├── skills/trailmark/SKILL.md
├── skills/trailmark-finding-triage/SKILL.md
├── skills/trailmark-review-gate/SKILL.md
├── skills/trailmark-structural/SKILL.md
├── skills/trailmark-summary/SKILL.md
├── skills/trailmark-variant-neighborhood/SKILL.md
└── skills/vector-forge/SKILL.md

Included Skills14

audit-augmentationskills/audit-augmentation/SKILL.md

Augments Trailmark code graphs with external audit findings from SARIF static analysis results, weAudit annotation files, and version-gated Trailmark 0.4.x binary-analysis graph exports. Maps findings to graph nodes by file and line overlap, creates severity-based subgraphs, and enables cross-referencing findings with pre-analysis data (blast radius, taint, etc.). Use when projecting SARIF results onto a code graph, overlaying weAudit annotations, importing binary graph findings, cross-referencing Semgrep, CodeQL, or binary-analysis findings with call graph data, or visualizing audit findings in the context of code structure.

crypto-protocol-diagramskills/crypto-protocol-diagram/SKILL.md

Extracts protocol message flow from source code, RFCs, academic papers, pseudocode, informal prose, ProVerif (.pv), or Tamarin (.spthy) models and generates Mermaid sequenceDiagrams with cryptographic annotations. Use when diagramming a crypto protocol, visualizing a handshake or key exchange flow, extracting message flow from a spec or RFC, diagramming a ProVerif or Tamarin model, or drawing sequence diagrams for TLS, Noise, Signal, X3DH, Double Ratchet, FROST, DH, or ECDH protocols.

diagramming-codeskills/diagramming-code/SKILL.md

Generates Mermaid diagrams from Trailmark code graphs. Produces call graphs, class hierarchies, module dependency maps, containment diagrams, complexity heatmaps, and attack surface data flow visualizations. Use when visualizing code architecture, drawing call graphs, generating class diagrams, creating dependency maps, producing complexity heatmaps, or visualizing data flow and attack surface paths as Mermaid diagrams.

genotoxicskills/genotoxic/SKILL.md

Graph-informed mutation testing triage. Parses codebases with Trailmark, runs mutation testing and necessist, then uses survived mutants, unnecessary test statements, and call graph data to identify false positives, missing test coverage, and fuzzing targets. Use when triaging survived mutants, analyzing mutation testing results, identifying test gaps, finding fuzzing targets from weak tests, running mutation frameworks (including circomvent and cairo-mutants), or using necessist.

graph-evolutionskills/graph-evolution/SKILL.md

Compares Trailmark code graphs at two source code snapshots (git commits, tags, or directories) to surface security-relevant structural changes. Detects new attack paths, complexity shifts, blast radius growth, taint propagation changes, and privilege boundary modifications that text diffs miss. Use when comparing code between commits or tags, analyzing structural evolution, detecting attack surface growth, reviewing what changed between audit snapshots, or finding security-relevant changes that text diffs miss.

mermaid-to-proverifskills/mermaid-to-proverif/SKILL.md

Translates Mermaid sequenceDiagrams describing cryptographic protocols into ProVerif formal verification models (.pv files). Use when generating a ProVerif model, formally verifying a protocol, converting a Mermaid diagram to ProVerif, verifying protocol security properties (secrecy, authentication, forward secrecy), checking for replay attacks, or producing a .pv file from a sequence diagram.

slicing-code-contextskills/slicing-code-context/SKILL.md

Selects bounded, graph-informed source slices with Trailmark and delegates focused code analysis or patch-proposal work to a smaller subagent. Use when offloading function-, class-, caller-, callee-, call-path-, entrypoint-, or line-focused code tasks to constrained or locally hosted models without exposing the full repository.

trailmarkskills/trailmark/SKILL.md

Builds and queries multi-language source and binary code graphs for security analysis. Includes pre-analysis passes for blast radius, taint propagation, privilege boundaries, entry point enumeration, proxy/unresolved-call tracking, type/reference queries, structural traversal, graph diffs, audit augmentation, declared cross-language/FFI/external links via `.trailmark/links.toml`, and SQL schema graphs. Use when analyzing call paths, mapping attack surface, finding complexity hotspots, enumerating entry points, tracing taint propagation, measuring blast radius, importing SARIF/weAudit/binary findings, linking source graphs across language or RPC boundaries, or building a code graph for audit prioritization. Feature-gate version-specific Trailmark APIs before using them; prefer `trailmark.parse.detect_languages()` or `--language auto` when the target language is unknown or polyglot.

trailmark-finding-triageskills/trailmark-finding-triage/SKILL.md

Performs graph-assisted triage of a single security finding, SARIF result, weAudit annotation, suspicious function, or report excerpt using Trailmark reachability, entrypoint paths, taint, privilege-boundary, blast-radius, caller/callee, and neighborhood evidence. Use when deciding whether one candidate issue is reachable, prioritizing a finding before PoC work, preparing evidence for exploit validation, or checking whether a static-analysis result is actionable.

trailmark-review-gateskills/trailmark-review-gate/SKILL.md

Runs a Trailmark structural review gate over a branch, pull request, fix commit, release diff, or git ref range to detect new entrypoints, new tainted paths, removed validation or authorization calls, privilege-boundary drift, blast-radius growth, complexity growth, and newly reachable sensitive sinks. Use when reviewing a PR, branch, remediation commit, or release diff where graph-level security regressions should be checked before merge.

trailmark-structuralskills/trailmark-structural/SKILL.md

Runs full Trailmark structural analysis by building a graph, running `preanalysis()`, and reporting hotspots, taint, blast radius, privilege boundaries, attack surface, and version-gated Trailmark 0.4+/0.5+ data such as proxy counts, subgraph edges, type/reference summaries, and entrypoint attributes. Use when vivisect needs detailed structural data for a target. Triggers: structural analysis, blast radius, taint analysis, complexity hotspots, proxy nodes, type references.

trailmark-summaryskills/trailmark-summary/SKILL.md

Runs a Trailmark summary analysis on a codebase. Returns auto-detected languages, entry point count, and dependency list. Use when vivisect or galvanize needs a quick structural overview. Triggers: trailmark summary, code summary, structural overview.

trailmark-variant-neighborhoodskills/trailmark-variant-neighborhood/SKILL.md

Expands one confirmed or suspected vulnerability into a Trailmark graph neighborhood of variant candidates by finding sibling functions, shared callers and callees, common sensitive sinks, common entrypoint paths, interface implementations, override relationships, type/reference neighbors, and structurally similar nodes. Use after one issue is found to seed variant-analysis, semgrep-rule-creator, static-analysis, or manual review with graph-derived candidate locations.

vector-forgeskills/vector-forge/SKILL.md

Mutation-driven test vector generation. Finds implementations of a cryptographic algorithm or protocol, runs mutation testing to identify escaped mutants, then generates new test vectors that deliberately exercise the uncovered code paths. Compares before/after mutation kill rates to prove vector effectiveness. Use when generating cryptographic test vectors, measuring Wycheproof coverage gaps, finding escaped mutants via mutation testing, creating cross-implementation test suites, or improving test vector coverage for crypto primitives.

Plugin manifests1

plugins/trailmark/.claude-plugin/plugin.json
{
  "name": "trailmark",
  "version": "0.11.3",
  "description": "Builds source and binary code graphs for security analysis, context slicing, mutation testing, cryptographic protocol modeling, finding triage, and variant analysis.",
  "author": {
    "name": "Scott Arciszewski",
    "url": "https://github.com/tob-scott-a"
  },
  "interface": {
    "displayName": "Trailmark",
    "shortDescription": "Builds source and binary code graphs for security analysis, context slicing, mutation testing, cryptographic protocol modeling, finding triage, and variant analysis.",
    "longDescription": "Builds multi-language source and binary code graphs for security analysis: call graphs, attack surface mapping, blast radius, taint propagation, complexity hotspots, entry point enumeration, proxy/unresolved-call tracking, type/reference analysis, and structural diffs. Creates bounded, graph-informed source packets for delegating focused work to constrained subagents. Generates Mermaid diagrams, runs graph-informed mutation testing triage (genotoxic), generates mutation-driven test vectors (vector-forge), extracts crypto protocol message flows, converts Mermaid diagrams to ProVerif models, projects SARIF/weAudit/binary findings onto code graphs, triages single findings with graph evidence, gates branch diffs for structural review regressions, and expands seed findings into variant-neighborhood candidates. Use when analyzing call paths, slicing source context for smaller models, mapping attack surface, visualizing code architecture, triaging survived mutants, generating cryptographic test vectors, diagramming crypto protocols, formally verifying protocols, augmenting audits with static analysis findings, deciding whether one candidate issue is reachable, reviewing graph-level PR risk, or seeding variant analysis.",
    "developerName": "Scott Arciszewski"
  }
}

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[trailmark on Agent Plugins Marketplace](https://pluginsmp.com/plugins/trailmark)