Capability-Centered Topology
A capability map should connect a tool or skill to its source, callers, sessions, and failure patterns.
Useful per capability: whether it is a tool or skill, who invokes it, where it comes from, which sessions depend on it, and whether volume or errors suggest attention.
Identity, adjacency, activity, and posture around one representative item.
Callers
Who reaches for this capability.
Claude Codeprimary agent
Cursorsecondary agent
alice@company.comfrequent user
Source Surface
Where the capability originates.
builtintool source
filesystemcategory
write_fileadjacent tool
Capability
read_file
Representative high-frequency tool; the same topology applies to skills by swapping source path for MCP or builtin origin.
22 sessions · 318 invocations
Session Context
Where it shows up inside work.
coding sessionsdominant workflow
/src/auth.tscommon target
session detailtrace invocations
Watch For
The operational and governance questions.
web_search 3.4%peer outlier
parameter misuseschema check
skill path driftfor skill variants
Type
tool
Category
filesystem
Source
builtin
Error posture
0.3%
Tools
1,285 total invocations · 2 with elevated error rate10 tools observed| Name | Category | Source | Sessions | Invocations | Error rate | Last seen |
|---|---|---|---|---|---|---|
| read_file | filesystem | builtin | 22 | 318 | 0.3% | today |
| write_file | filesystem | builtin | 18 | 204 | 0.5% | today |
| list_directory | filesystem | builtin | 20 | 191 | 0% | today |
| bash | shell | builtin | 24 | 340 | 0% | today |
| create_pr | vcs | github | 9 | 44 | 2.3% | today |
| search_code | vcs | github | 11 | 87 | 1.1% | today |
| web_search | search | web-search | 6 | 44 | 3.4% | today |
| query_database | data | postgres | 2 | 18 | 0% | yesterday |
| get_figma_context | design | figma | 4 | 31 | 0% | today |
| navigate | browser | puppeteer | 1 | 8 | 0% | Mar 30 |
Skills
8 skills observed| Name | Source path | Agent | Sessions | Last seen |
|---|---|---|---|---|
| wireframe-builder | .claude/skills/wireframe-builder.md | claude-code | 14 | today |
| mockup-builder | .claude/skills/mockup-builder.md | claude-code | 8 | today |
| iterate | .claude/skills/iterate.md | claude-code | 6 | today |
| commit | .claude/skills/commit.md | claude-code | 11 | today |
| review-pr | .claude/skills/review-pr.md | claude-code | 4 | yesterday |
| deploy | .claude/skills/deploy.md | claude-code | 2 | Mar 30 |
| ingest | .claude/skills/ingest.md | claude-code | 3 | today |
| write-brief | .claude/skills/write-brief.md | claude-code | 5 | today |