trace-function

A code-tracing command that maps a function’s definition, callers, callees, and surrounding file dependencies.

In plain words
What is it for?
Use it to inspect a function’s signature, location, complexity, call chain, and the likely impact of its containing file.
Why use it?
It removes the need to manually search through a codebase to understand where a function fits and what could be affected by it.

Command for Claude Code

Install

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.

agentmods
npx agentmods add commands/suitable-adventures/suitable-loop/trace-function
Clone the repo
git clone --depth 1 https://github.com/suitable-adventures/suitable-loop

Made for: Claude Code.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 169 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00169
Opus 5 $0.00000 $0.00084
Sonnet 5 $0.00000 $0.00034
Haiku 4.5 $0.00000 $0.00017

Measured yesterday against content hash 11e817947bce, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

trace-function scanned grade A with 0 findings 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 yesterday.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/commands/trace-function.md · 18 lines

What it actually says

Trace the function: $ARGUMENTS

Map out everything about this function and its role in the codebase.

Steps:

  1. Use query_entity to get the function's details (signature, complexity, location)
  2. Use find_callers to see everything that calls it
  3. Use find_callees to see everything it calls
  4. Use blast_radius on the file containing this function
  5. Use search_code if the function name is ambiguous to find all matches

Then give me:

  • Function signature, location, and complexity score
  • Who calls this function (direct callers) — grouped by module
  • What this function calls (direct callees)
  • The blast radius of its containing file
  • A visual call chain showing how this function fits into the broader system
Changes

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.

  1. yesterday First seen · 18 lines · 0 tokens per session scan A 11e817947bce

Subscribe to this mod's changes

trace-function is a command published in the GitHub repository suitable-adventures/suitable-loop (0 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 169 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.