network-bgp-diagnostics

network-bgp-diagnostics is a skill for Claude Code, Codex from gongyijie85/dsh-ecc. It costs 53 tokens per session (1,365 once invoked), scanned A, a copy of network-bgp-diagnostics, MIT.

A read-only guide for diagnosing BGP, the routing protocol that exchanges network routes between autonomous systems. It covers neighbor states, missing routes, route policies, and AS paths.

In plain words
What is it for?
Use it to investigate down or unstable BGP sessions, missing or unexpected prefixes, route-map and prefix-list filtering, and to collect before-and-after evidence.
Why use it?
It helps narrow down whether a BGP problem comes from connectivity, filtering, or incorrect routing policy before changes are made.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to investigate down or unstable BGP sessions, missing or unexpected prefixes, route-map and prefix-list filtering, and to collect before-and-after evidence.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gongyijie85/dsh-ecc/network-bgp-diagnostics
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.

Any agent
npx skills add gongyijie85/dsh-ecc --skill network-bgp-diagnostics
Clone the repo
git clone --depth 1 https://github.com/gongyijie85/dsh-ecc

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for network-bgp-diagnostics

README.md
[![agentmods](https://agentmods.dev/badge/skills/gongyijie85/dsh-ecc/network-bgp-diagnostics/github.svg)](https://agentmods.dev/skills/gongyijie85/dsh-ecc/network-bgp-diagnostics)
Your own site
<a href="https://agentmods.dev/skills/gongyijie85/dsh-ecc/network-bgp-diagnostics"><img src="https://agentmods.dev/badge/skills/gongyijie85/dsh-ecc/network-bgp-diagnostics/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.

agentmods 80×15 button for network-bgp-diagnostics

Your own site · 80×15
<a href="https://agentmods.dev/skills/gongyijie85/dsh-ecc/network-bgp-diagnostics"><img src="https://agentmods.dev/badge/skills/gongyijie85/dsh-ecc/network-bgp-diagnostics.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,365 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 95% copy Near-identical to another mod 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 5.1 $0.00053 $0.01365
Opus 5 $0.00026 $0.00682
Sonnet 5 $0.00011 $0.00273
Haiku 4.5 $0.00005 $0.00136

Measured 6d ago against content hash 44a8d9ba4644, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

network-bgp-diagnostics 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 6d 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.

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.

Origin

This is a copy

95% identical to network-bgp-diagnostics — 2 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.

skills/network-bgp-diagnostics/SKILL.md · 169 lines

How it starts

The opening of the file, as written. The whole thing — 169 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Network BGP Diagnostics

Use this skill when a BGP session is down, flapping, established with missing routes, or advertising unexpected prefixes. The default workflow is read-only evidence collection; policy and reset actions belong in a reviewed change window.

When to Use

  • BGP neighbors are stuck in Idle, Connect, Active, OpenSent, or OpenConfirm.
  • A session is Established but expected prefixes are missing.
  • A route-map, prefix-list, max-prefix limit, or AS path policy may be filtering routes.
  • You need before/after evidence for a BGP change.
  • You are reviewing automation that parses BGP summary output.

Read-Only Triage Flow

  1. Identify the exact neighbor, address family, VRF, and local/remote ASNs.
  2. Capture summary state and last reset reason.
  3. Prove reachability to the peer source address.
  4. Check route policy references before assuming transport failure.
  5. Compare advertised, received, and installed routes where the platform supports those commands.
show bgp summary
show bgp neighbors <peer>
show ip route <peer>
show tcp brief | include <peer>|:179
show logging | include BGP|<peer>
show running-config | section router bgp
show ip prefix-list
show route-map

Use platform-specific address-family commands when the device uses VRFs, IPv6, VPNv4, or EVPN. Do not assume global IPv4 unicast.

State Interpretation

State First checks
Established with prefix count Route exchange is up; inspect policy and table selection
Established with zero prefixes Check inbound policy, max-prefix, advertised routes, and AFI/SAFI
Active TCP session is not completing; check routing, source, ACLs, and peer reachability
Connect TCP connection is in progress; check path and remote listener
OpenSent/OpenConfirm TCP works; check ASN, authentication, timers, capabilities, and logs
Idle Neighbor may be disabled, missing config, blocked by policy, or backoff timer

Transport Checks

ping <peer> source <local-source>
traceroute <peer> source <local-source>
show ip route <peer>
show bgp neighbors <peer> | include BGP state|Last reset|Local host|Foreign host

Read the full file on GitHub · 169 lines

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. 6d ago First seen · 169 lines · 53 tokens per session scan A 44a8d9ba4644

Subscribe to this mod's changes

network-bgp-diagnostics is a skill published in the GitHub repository gongyijie85/dsh-ecc (6 stars, last pushed 2d ago), licensed MIT. It adds 53 tokens to every session and 1,365 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to network-bgp-diagnostics, differing in 2 lines, and is treated as a copy.

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