Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add wangke19/gemini-ai-helpers --skill call-graph-analysisgit clone --depth 1 https://github.com/wangke19/gemini-ai-helpersWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/wangke19/gemini-ai-helpers/call-graph-analysis)<a href="https://agentmods.dev/skills/wangke19/gemini-ai-helpers/call-graph-analysis"><img src="https://agentmods.dev/badge/skills/wangke19/gemini-ai-helpers/call-graph-analysis/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/wangke19/gemini-ai-helpers/call-graph-analysis"><img src="https://agentmods.dev/badge/skills/wangke19/gemini-ai-helpers/call-graph-analysis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00022 | $0.02428 |
| Opus 5 | $0.00011 | $0.01214 |
| Sonnet 5 | $0.00004 | $0.00486 |
| Haiku 4.5 | $0.00002 | $0.00243 |
Grade B, and why
Call Graph Reachability Analysis scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
- `graphviz` (for visualization): `brew install graphviz` (macOS) or `sudo apt-get install graphviz` (Linux) This is a copy
95% identical to call-graph-analysis — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 275 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Call Graph Reachability Analysis
Provides highest-confidence vulnerability assessment by proving whether vulnerable functions can actually be reached during program execution.
When to Use This Skill
Use this skill when:
- You need definitive proof that a vulnerable function is or isn't reachable
- Medium/high confidence analysis shows possible vulnerability but needs confirmation
- Generating evidence for security compliance or audit requirements
govulncheckis unavailable or didn't find the CVE- You need visual proof of execution paths for stakeholders
Prerequisites
Required Tools
callgraph:go install golang.org/x/tools/cmd/callgraph@latestdigraph:go install golang.org/x/tools/cmd/digraph@latest- Go workspace with
go.modfile
Optional Tools
graphviz(for visualization):brew install graphviz(macOS) orsudo apt-get install graphviz(Linux)sfdpordotcommand (part of graphviz)
Input Requirements
- CVE vulnerable function signature (e.g.,
<package-path>.<function-name>) - Package path from CVE analysis
- Workspace path to analyze
- Algorithm preference (optional, default:
vta) — passed via--algofrom parent command CVE_ID— used to construct the output directoryOUT_DIR(optional, default:.work/compliance/analyze-cve/${CVE_ID}) — where artifacts are written
Timeout and Algorithm Convention
- Use the algorithm specified by the user via
--algo(default:vta). - All
callgraphinvocations usetimeout 300(5 minutes) to prevent hanging on large codebases. - If the chosen algorithm times out: fall back to the next faster algorithm (
vta→rta→cha), then narrow scope to specific packages (e.g.,./cmd/...,./pkg/...).
Implementation Steps
Step 1: Verify Tools Are Available
# Check for callgraph
which callgraph || echo "callgraph not found - install with: go install golang.org/x/tools/cmd/callgraph@latest"
# Check for digraph
which digraph || echo "digraph not found - install with: go install golang.org/x/tools/cmd/digraph@latest"
# Optional: Check for graphviz
which sfdp || echo "graphviz not found - visual graphs won't be generated (optional)"
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 5d ago First seen · 275 lines · 22 tokens per session scan B 9ac09072d33a
Call Graph Reachability Analysis is a skill published in the GitHub repository wangke19/gemini-ai-helpers (2 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 22 tokens to every session and 2,428 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). It is 95% identical to call-graph-analysis, differing in 4 lines, and is treated as a copy.
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