syncchanges

A command for syncing only API changes made since a previous Postman update. Postman is a tool for designing and testing web APIs, and the command can select changes by commits or date.

In plain words
What is it for?
Use it to sync all changes since the last update, the last few commits, a date, or a specific commit; it handles new and modified routes differently.
Why use it?
It avoids remembering Git reference syntax and avoids resending unchanged API information. On a first run without a saved marker, it directs you to the full-sync command.

Command

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/logesh-works/postman-mcp/syncchanges
Clone the repo
git clone --depth 1 https://github.com/logesh-works/postman-mcp
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 637 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 $0.00637
Opus 5 $0.00000 $0.00318
Sonnet 5 $0.00000 $0.00127
Haiku 4.5 $0.00000 $0.00064

Measured yesterday against content hash 710e7456f149, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

syncchanges 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.

docs/commands/syncchanges.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/postman:syncchanges: sync what changed

This is the one you'll run most. After you write code and commit, it syncs only what changed, and you never have to think about git refs to use it.

Usage

/postman:syncchanges [--last N] [--since commit|date]

For free-form instructions (add error responses, headers, a rewritten description, …), use /postman:prompt instead.

Default behavior

With no flags, it syncs everything changed since lastUpdate.commit, the marker written by your last sync. You never name a git ref yourself.

Flag Effect
(none) Everything changed since the last sync.
--last 3 The last 3 commits. No need to remember HEAD~3 syntax.
--since 2026-06-01 Everything since a date.
--since a1b2c3d Everything since a specific commit.

!!! warning "First run with no marker" If there's no lastUpdate.commit yet, the command errors gently and suggests /postman:syncall for the initial full sync.

How each change is handled

Change type Behavior
New route Full create.
Modified route Only the changed structural fields are updated; human-owned scripts and examples are preserved.
Deleted route Noted in the sync notes, not auto-removed or deprecated yet — deletion handling is still manual. Remove the stale request from the collection by hand.

Why it's cheap

syncchanges parses only the files that changed since the last marker, not the whole project, and reads just the collection's basic structure rather than mirroring it locally. That's what keeps token usage low enough to run after every change instead of saving it up.

Example

<edit routes/payments.py, commit>
/postman:syncchanges

Collection: Acme Backend
Plan: 1 new · 1 modified

[MODIFY] POST /payments   → (root)   ✓ verified (routes/payments.py:12)
[NEW] GET /payments/{id}   → (root)   ✓ verified (routes/payments.py:24)

Write to Postman? Re-run with confirm=true to apply.

Read the full file on GitHub · 71 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 · 71 lines · 0 tokens per session scan A 710e7456f149

Subscribe to this mod's changes

syncchanges is a command published in the GitHub repository logesh-works/postman-mcp (1 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 637 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.