gabrielmoreira Topolograph IGP Topology Analysis
Every device-facing routing skill NetClaw has — pyats-routing,
pyats-junos-routing, multivendor-device-query — reads one live device's
RIB and LSDB. This one reasons over the whole area's link-state database
at once, from a graph Topolograph already built, and can simulate a change
without touching anything.
It answers "what does the IGP think the topology is, and what would it do if X failed?" — not "what is on this router right now."
Remote, read-only
topolograph-mcp is a remote HTTP MCP registered in config/openclaw.json.
There is no local server. It fronts your own Topolograph instance
(TOPOLOGRAPH_MCP_URL, default https://topolograph.com/mcp), bearer
TOPOLOGRAPH_API_TOKEN.
The server runs with TOPOLOGRAPH_MCP_READ_ONLY=true: mutation tools
(upload_graph, add_lsp, update_lsp, delete_lsp) are absent from
tools/list and cannot be called. Do not try to reach them — a topology
change belongs in the device-write path, gated, not here.
Client-side allowlist
The tool filter is enforced with the DefenseClaw CLI, not a config block:
defenseclaw tool allow topolograph-mcp get_all_graphs
defenseclaw tool allow topolograph-mcp get_graph_by_time
defenseclaw tool allow topolograph-mcp get_network_by_graph_time
defenseclaw tool allow topolograph-mcp get_graph_status
defenseclaw tool allow topolograph-mcp get_network_events
defenseclaw tool allow topolograph-mcp get_adjacency_events
defenseclaw tool allow topolograph-mcp get_events_timeline
defenseclaw tool allow topolograph-mcp get_nodes
defenseclaw tool allow topolograph-mcp get_edges
defenseclaw tool allow topolograph-mcp get_lsps
defenseclaw tool allow topolograph-mcp get_shortest_path
defenseclaw tool allow topolograph-mcp get_cspf_path
defenseclaw tool allow topolograph-mcp get_edge_failure_reaction
defenseclaw tool block topolograph-mcp upload_graph
defenseclaw tool block topolograph-mcp add_lsp
defenseclaw tool block topolograph-mcp update_lsp
defenseclaw tool block topolograph-mcp delete_lsp
The block lines are belt-and-braces: the server already hides those, but a
misconfigured (TOPOLOGRAPH_MCP_READ_ONLY=false) instance must not widen
NetClaw's surface.
Tools
| Tool | Answers |
|---|---|
get_all_graphs |
Which stored topology snapshots exist (filter by protocol, area, date). Start here to get a graph_time. |
get_graph_by_time |
The full graph for one snapshot. |
get_graph_status |
Health of a snapshot — is it complete and consistent. |
get_network_by_graph_time |
Which prefixes/networks are in the graph, by mask/area. |
get_nodes |
Routers in the area, filterable by role flag (ABR/ASBR, IS-IS overload/attached). |
get_edges |
Adjacencies, with include=["lsps","is_te_link","lsp_left_bw","edge_key"] for MPLS-TE fields. |
get_lsps |
MPLS-TE LSP tunnels, filter by status, via_node, via_edge. |
get_shortest_path |
SPF path between two nodes; with_lsps=true accounts for autoroute tunnels. |
get_cspf_path |
Constrained-SPF feasibility between two nodes — never mutates the graph. |
get_edge_failure_reaction |
Whole-network impact if one or more links fail: stays connected? rerouting pattern? Simulation only. |
get_network_events / get_adjacency_events |
Raw topology-change events in a time range. |
get_events_timeline |
The same events grouped into waves for incident narration. |
Boundary — when to use something else
| Question | Skill |
|---|---|
| "What does the IGP topology look like / what if this link fails?" | this skill |
| "What is in this router's routing table / LSDB right now?" | pyats-routing, pyats-junos-routing, multivendor-device-query |
| "Is this adjacency actually up on the device?" | the platform routing skill |
| "Push a metric / cost change" | device-write path, gated — never here |
Topolograph reasons over a stored snapshot. If the question is "is this true on the wire this second", confirm on the device after.
Never
- Never present a simulation result (
get_edge_failure_reaction,get_cspf_path) as something that happened. It is a prediction over a snapshot. - Never report a stale
graph_timeas current — checkget_all_graphsfor the latest snapshot, and say how old it is.