agentmods.dev

codehub-contract-map

A skill that creates a map of API or service contracts across a named group of repositories. It produces a Markdown document with a Mermaid interaction diagram.

In plain words
What is it for?
Use it to document HTTP or other service interactions for a registered repository group and save the result in the configured contracts path.
Why use it?
It gathers how services communicate in one view, making cross-repository dependencies easier to review. It stops when the group is missing, unknown, or contains stale repository indexes.

Skill for Claude CodeCodex

3 20d ago A scan 113 tokens original Apache-2.0
View the source file theagenticguy/opencodehub
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 skills/theagenticguy/opencodehub/codehub-contract-map
Any agent
npx skills add theagenticguy/opencodehub --skill codehub-contract-map
Clone the repo
git clone --depth 1 https://github.com/theagenticguy/opencodehub

Made for: Claude Code, Codex.

Per session 113 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,702 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 $0.00113 $0.01702
Opus 5 $0.00056 $0.00851
Sonnet 5 $0.00023 $0.00340
Haiku 4.5 $0.00011 $0.00170

Measured yesterday against content hash cb19f5a338a3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

codehub-contract-map 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/skills/codehub-contract-map/SKILL.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

codehub-contract-map

Standalone group-only skill. Renders group_contracts into a Markdown + Mermaid artifact. Fires on direct invocations ("map the contracts") without needing the full codehub-document orchestration.

Preconditions

  1. A <group-name> positional argument is required. If missing or if mcp__codehub__group_list does not return the name, refuse with: Contract map requires a named group — run 'codehub group list' to see registered groups. (Spec 001 AC-3-4.)
  2. mcp__codehub__group_status({group}) must return fresh: true for every member. If any member is stale, abort and name each stale repo.

Arguments

  • <group-name> (required positional) — the group to map.
  • --output <path> (optional) — override the output path.
  • --committed (optional) — write to a committed path instead of .codehub/.

Default output path:

  • without --committed: .codehub/groups/<name>/contracts.md (gitignored)
  • with --committed: docs/<group>/contracts.md

Process

  1. Run the preconditions. Refuse on missing/unknown group.
  2. mcp__codehub__group_list — confirm <group-name> exists; read member list.
  3. mcp__codehub__group_status({group}) — confirm freshness per member. Abort with named stale repos otherwise.
  4. mcp__codehub__group_contracts({group}) — the spine. Returns {producer_repo, consumer_repo, path, method, shape}.
  5. If group_contracts returns [] (zero inter-repo contracts): still write the artifact with a No inter-repo contracts detected banner and an empty matrix. Do not error. (Spec 001 AC-5-5.)
  6. mcp__codehub__group_query({group, text: "api handlers"}) — disambiguate producer-side locations.
  7. For each member repo: mcp__codehub__route_map({repo}) for handler-path citations.
  8. Build the consumer/producer matrix: rows = producers, columns = consumers, cell = contract count.
  9. Build the Mermaid flowchart LR showing inter-repo edges, labeled with contract counts.
  10. Assemble the output using the template below.
  11. Write to the resolved output path.

Read the full file on GitHub · 145 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. yesterday First seen · 145 lines · 113 tokens per session scan A cb19f5a338a3

Subscribe to this mod's changes

codehub-contract-map is a skill published in the GitHub repository theagenticguy/opencodehub (3 stars, last pushed 20d ago), licensed Apache-2.0. It adds 113 tokens to every session and 1,702 once invoked, about $0.0006 per session on Opus 5. 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.

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