Handoff
PYPI · HANDOFF-MCP · SCANNED SEP 20
Cross-session memory for Claude over MCP — prioritised briefs, supersession, cross-project recall.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- Runs hatchling.build at install time, a recognised native-build step with no shell scripting around it. View diagnostics → Pass
- 0 of 29 dependencies flagged as unhealthy. View diagnostics → Pass
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 70 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability83
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1435 tokens (~179/item across 8 items; 7 tools + 1 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management80
- Stability observed for 24 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 9 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the Handoff MCP server?
Handoff runs locally as a PyPI package, launched with uvx handoff-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
pypi · handoff-mcp
claude mcp add kirill-sviridov-handoff-mcp -- uvx handoff-mcp
{
"mcpServers": {
"kirill-sviridov-handoff-mcp": {
"command": "uvx",
"args": [
"handoff-mcp"
]
}
}
} {
"servers": {
"kirill-sviridov-handoff-mcp": {
"command": "uvx",
"args": [
"handoff-mcp"
]
}
}
} codex mcp add kirill-sviridov-handoff-mcp -- uvx handoff-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"kirill-sviridov-handoff-mcp": {
"type": "local",
"command": [
"uvx",
"handoff-mcp"
],
"enabled": true
}
}
} openclaw mcp add kirill-sviridov-handoff-mcp --command uvx --arg handoff-mcp
mcp_servers:
kirill-sviridov-handoff-mcp:
command: "uvx"
args: ["handoff-mcp"] {
"McpServers": {
"kirill-sviridov-handoff-mcp": {
"Transport": "stdio",
"Command": "uvx",
"Arguments": [
"handoff-mcp"
]
}
}
} assistant mcp add kirill-sviridov-handoff-mcp -t stdio -c uvx -a handoff-mcp
{
"mcpServers": {
"kirill-sviridov-handoff-mcp": {
"command": "uvx",
"args": [
"handoff-mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 20 Sept 26 −3
- Stability: pass → 0.80 functional
- 19 Sept 26 0
- Stability: 0.97 → pass security
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 15 Sept 26 +15
- Malware scan: unverified → pass ▲ security
- 14 Sept 26 −14
- Malware scan: pass → unverified ▼ security
- 13 Sept 26 −3
- Stability: pass → 0.80 functional
- 12 Sept 26 0
- Stability: 0.97 → pass security
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Analysed pypi/handoff-mcp@0.4.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | pypi |
Background: How many MCP packages publish verified provenance →
Install scripts 1 script
| Hook | Tier | Command |
|---|---|---|
| build_backend | allowlisted | hatchling.build |
Background: Why install scripts are a supply-chain risk →
Dependencies 29 packages
| Packages resolved | 29 |
|---|---|
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
checkpoint ~136
Close out the current session and produce its hand-off brief. Call this at the END of a session, or when the user signals they're stopping or switching context. It finalises the session note and returns the brief the next session will read.
| Name | Type | Req | Description |
|---|---|---|---|
| project | – | – | Project namespace to close; defaults to the current session's project. Pass the SAME project you logged events under — a session that logged with project='X' must be checkpointed with project='X', or… |
| summary | – | – | Optional one-line human summary of what this session accomplished. |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
consolidate ~112
Compress old finished sessions into durable entity notes ('sleep'). Call this when a project's session log has grown large and you want to reclaim space while keeping the lasting knowledge: it distils old sessions into the durable entity notes and archives the originals. Requires a configured LLM (HANDOFF_LLM_MODEL); it is the only step that uses one.
| Name | Type | Req | Description |
|---|---|---|---|
| older_than_days | – | – | Only fold sessions finished more than this many days ago. |
| project | – | – | Project to consolidate; defaults to the current project. |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
get_brief ~123
Load the prioritised hand-off brief for a project. Call this at the START of a session, before doing anything else, to learn where the previous session left off: the goal, the next step, key decisions and their rationale, dead-ends already ruled out, and open questions. Retracted decisions are omitted. This is a curated brief, not a raw context dump.
| Name | Type | Req | Description |
|---|---|---|---|
| project | – | – | Project to summarise; defaults to the current project. |
| token_budget | – | – | Max tokens for the brief; lowest-priority items drop first. |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
log_event ~466
Record a progress signal for the current work session. Call this proactively as work happens — every time you set or change the goal, make a non-trivial decision (and why), hit a dead-end worth not repeating, touch an important file, surface an open question, or decide the next step. Keep each event ATOMIC and concise: one item per call, 1-2 sentences. Log several small events rather than dumping a whole session summary into one — the brief is meant to stay skimmable. Reference durable notes inline as [[Entity]] so they link in the brief's "Related knowledge". This is how the next session inherits your context. Returns the new event id (use it later in `supersedes`). If `supersedes_query` retired a prior event, a second line names which id was retired (or notes that none matched), so the retraction is auditable.
| Name | Type | Req | Description |
|---|---|---|---|
| content | string | yes | One atomic item in 1-2 sentences (a decision + its why, a single dead-end, one next step) — not a multi-paragraph session summary. Reference durable notes inline as [[Entity]] to link the graph. |
| importance | integer | – | Priority 1-5 (5 = critical). Higher items survive the brief budget. |
| project | – | – | Project namespace; defaults to the current session's project. |
| supersedes | – | – | Ids of earlier events this one makes obsolete (e.g. a reversed decision). Superseded events are excluded from future briefs. |
| supersedes_query | – | – | Retire a prior event you don't have the id for: the single best-matching ACTIVE event of the SAME type in this project is found by keyword search and superseded. Use when you change a past decision b… |
| type | string | yes | One of: 'goal' (what this session is achieving), 'decision' (a choice made — include the rationale), 'deadend' (something tried that failed — so it isn't repeated), 'file' (a file touched or relevant… |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
note_entity ~147
Record durable, long-lived project knowledge on an entity note. Use this (rather than log_event) for facts that outlive a single session: the system's architecture, coding conventions, what a component does, or standing open questions. These notes are linked from sessions via [[wiki-links]] and form the project's knowledge graph. Returns the entity name.
| Name | Type | Req | Description |
|---|---|---|---|
| content | string | yes | A durable fact about this entity to remember long-term. |
| name | string | yes | Entity name, e.g. 'Architecture', 'Conventions', 'Auth Service', 'Open Questions'. Becomes a [[wiki-link]] target. |
| project | – | – | Project namespace; defaults to the current project. |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
search_memory ~187
Search memory across sessions and projects. Call this whenever the user references past work, a prior decision, or ANOTHER project — e.g. "in one of my projects we did X", "how did we solve Y before", "what did we decide about Z", "last time". Use scope='all' (the default) to recall across every project; scope='current' to stay in this one. Returns matching past events with their project, content, and id — the id can be fed straight into log_event's `supersedes` to retire a decision you just found to be outdated.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Maximum number of results to return. |
| query | string | yes | What to look for, in natural language or keywords. |
| scope | string | – | 'current' = this project only; 'all' = every project in memory. |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
sync ~151
Sync this device's memory vault with its private git remote. Use when the user wants their memory on another device, or to push/pull now. If the vault isn't configured yet, this returns setup instructions — relay them and ask the user for a private repo URL, then call again with remote_url. Once configured, a bare call pulls remote work, commits local changes, and pushes. Safe to call repeatedly.
| Name | Type | Req | Description |
|---|---|---|---|
| remote_url | – | – | Only for FIRST-TIME setup: a PRIVATE git repo URL to bind this vault to (the user provides it; they can create one via `gh repo create <name> --private`). Omit once configured — a plain call pulls, c… |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
What is the Handoff MCP server?
Handoff is an MCP server listed in the public MCP registry as io.github.kirill-sviridov/handoff-mcp. Cross-session memory for Claude over MCP, prioritised briefs, supersession, cross-project recall. This page covers its PyPI package (handoff-mcp).
Is the Handoff MCP server safe to use?
Handoff scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Handoff MCP server expose?
Handoff exposes 7 tools: log_event, get_brief, search_memory, checkpoint, note_entity, and 2 more. Their descriptions and schemas cost roughly 1,322 tokens of context every time the server is loaded.
Is the Handoff MCP server still maintained?
Handoff is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Handoff MCP server under?
Handoff declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.