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.
npx skills add neo4j-contrib/neo4j-skills --skill neo4j-migration-skillgit clone --depth 1 https://github.com/neo4j-contrib/neo4j-skillsWrote 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.
[](https://agentmods.dev/skills/neo4j-contrib/neo4j-skills/neo4j-migration-skill)<a href="https://agentmods.dev/skills/neo4j-contrib/neo4j-skills/neo4j-migration-skill"><img src="https://agentmods.dev/badge/skills/neo4j-contrib/neo4j-skills/neo4j-migration-skill/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.
<a href="https://agentmods.dev/skills/neo4j-contrib/neo4j-skills/neo4j-migration-skill"><img src="https://agentmods.dev/badge/skills/neo4j-contrib/neo4j-skills/neo4j-migration-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Data Exfiltration · line 351 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00175 | $0.04668 |
| Opus 5 | $0.00088 | $0.02334 |
| Sonnet 5 | $0.00035 | $0.00934 |
| Haiku 4.5 | $0.00017 | $0.00467 |
Grade A, and why
neo4j-migration-skill scanned grade A with 1 finding 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 13d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -X POST https://<host>/db/<database>/query/v2 \ How it starts
The opening of the file, as written. The whole thing — 407 lines — stays where its author put it; the contents beside it link to each section on GitHub.
When to Use
- Upgrading driver dependency from 4.x or 5.x to 6.x
- Migrating Cypher queries to Cypher 25 syntax
- Fixing deprecated API warnings after a driver or Neo4j version bump
- Auditing a codebase for removed/deprecated Neo4j APIs before upgrading
When NOT to Use
- Writing new Cypher queries →
neo4j-cypher-skill - DB admin (backup, restore, import, cypher-shell) →
neo4j-cli-tools-skill - Starting fresh →
neo4j-getting-started-skill - GDS algorithm migration — not covered here; consult GDS release notes
Entry Criteria
Before starting, ask:
- Target Neo4j version — needed to select Cypher dialect and driver version
- Languages in use — scan
package.json,requirements.txt,pom.xml,*.csproj,go.mod - Current driver versions — read from dependency files; do NOT guess
If target is >= 2025.06: ask whether Cypher 5 or Cypher 25 dialect will be used (both supported; Cypher 25 is the new default).
Step 1 — Scan Codebase
# Find Cypher strings (queries embedded in source)
grep -rn "MATCH\|MERGE\|CREATE\|CALL\|RETURN" --include="*.py" --include="*.js" \
--include="*.ts" --include="*.java" --include="*.cs" --include="*.go" \
--include="*.cypher" --include="*.cql" . | grep -v ".git"
# Find dependency files
find . -name "requirements*.txt" -o -name "package.json" -o -name "pom.xml" \
-o -name "*.csproj" -o -name "go.mod" | grep -v ".git" | grep -v node_modules
Collect findings before modifying anything. List all deprecated patterns found.
Step 2 — Cypher Migration (4.x / 5.x → Cypher 25)
Apply to every Cypher string, .cypher file, OGM/SDN @Query annotation, and template literal.
Complete Substitution Table
| Old syntax | Cypher 25 replacement | Notes |
|---|---|---|
[:REL*1..5] |
(()-[:REL]->()){1,5} |
QPE quantifier group |
[:REL*] |
(()-[:REL]->()){1,} |
Unbounded QPE |
[:REL*0..5] |
(()-[:REL]->()){0,5} |
Zero-hop allowed |
shortestPath((a)-[*]->(b)) |
SHORTEST 1 (a)(()-[]->()){1,}(b) |
QPE shortest path |
allShortestPaths((a)-[*]->(b)) |
ALL SHORTEST (a)(()-[]->()){1,}(b) |
QPE all-shortest |
id(n) |
elementId(n) |
Returns string, not int |
CALL { WITH x ... } |
CALL (x) { ... } |
Explicit import syntax |
PERIODIC COMMIT |
CALL (...) { ... } IN TRANSACTIONS OF 1000 ROWS |
Batched writes |
-- comment |
// comment |
SQL comment invalid |
SET n = r (structural val) |
SET n = properties(r) |
Extract map first |
MERGE (a {x:1})-[:T]->(b {x:a.x}) |
Rewrite — cross-entity MERGE refs disallowed | Split into MATCH+MERGE |
CREATE INDEX ... OPTIONS { indexProvider: ... } |
Remove indexProvider from OPTIONS |
Provider selection removed |
db.create.setVectorProperty(...) |
Use native VECTOR property type | Procedure removed |
dbms.upgrade() / dbms.upgradeStatus() |
Use cypher-shell :sysinfo |
Procedures removed |
USE composite.'1' |
USE `composite.1` |
Backtick entire qualified name |
RETURN 1 as my$Identifier |
RETURN 1 as `my$Identifier` |
$ removed from unescaped ids |
What ships with it
8 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 13d ago First seen · 407 lines · 175 tokens per session scan A b9ea035b8b0a
neo4j-migration-skill is a skill published in the GitHub repository neo4j-contrib/neo4j-skills (109 stars, last pushed 5d ago), licensed MIT. It adds 175 tokens to every session and 4,668 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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