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Host a copy with our keys and logs.
cargo basalt-dbClaude Code ไม่มีลิงก์ติดตั้งสำหรับคำสั่งแบบโลคัล ให้คัดลอกคำสั่งด้านล่างแล้วรันในเทอร์มินัล
claude mcp add io.github.joshiii-xyz-basalt -- cargo basalt-dbรันในเทอร์มินัล
{ "mcpServers": { "io.github.joshiii-xyz-basalt": { "command": "cargo", "args": [ "basalt-db" ] } }}claude_desktop_config.json
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Basalt is an embedded SQL database and command-line application built from scratch in Rust. It provides a small library API, an interactive shell, durable storage, snapshot-isolated transactions, crash recovery, portable structured-data workspaces, and a stdio MCP server for local AI agents. It is not a SQLite-compatible replacement or a hosted database.
Local SQL workspaces with bounded, recoverable writes for coding agents.
Rust 1.88 or newer is required for a Cargo install.
cargo install basalt-db --locked
The published package is named basalt-db; the installed command remains
basalt. To install the current checkout instead, use
cargo install --path . --locked.
Tagged releases include checksummed installers and prebuilt binaries for Linux, macOS, and Windows. See GitHub Releases for the current no-toolchain install. The latest tagged release is verified from its published installer and its checksums:
curl --proto '=https' --tlsv1.2 -LsSf https://github.com/yoshiii-xyz/basalt/releases/latest/download/basalt-db-installer.sh | sh
To run directly from a checkout:
cargo run --release -- app.basalt
Open a database and run SQL interactively:
$ basalt app.basalt
basalt> CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT NOT NULL);
basalt> INSERT INTO users VALUES (1, 'Ada');
basalt> SELECT * FROM users;
id | name
---+-----
1 | Ada
1 row(s)
For a one-shot command:
basalt --json --command "SELECT * FROM users ORDER BY id;" app.basalt
Use Database::in_memory() for an ephemeral database. Durable writes are
appended to the WAL immediately; call checkpoint() to fold the current state
into the snapshot and clear old WAL frames. A durable path is owned by one
process at a time; cloned Database handles share that owner safely across
threads, while a second process receives an "already open" error.
Use a workspace when an agent or script needs a disposable, local relational area for CSV, JSON, logs, issue exports, or fixtures:
basalt init .basalt-workspace
basalt workspace import --table issues .basalt-workspace issues.csv
basalt workspace inspect --json .basalt-workspace
basalt workspace query --json .basalt-workspace "SELECT * FROM issues ORDER BY id"
basalt workspace export .basalt-workspace issues issues.jsonl
Imports are atomic, recoverable, and return a durable change_id; exports are
deterministic. Add --json to workspace import/export commands when an agent or
script needs a machine-readable operation report; raw exports to - remain
clean data streams. Later writes can be previewed, applied by exact plan ID,
inspected in history, diffed with schema and row-change counts, and undone when
they are the latest change. A workspace is owned by one Basalt process while
open, so stop a
workspace MCP server before using that workspace from the CLI or by opening its
data.basalt file directly. See docs/workspaces.md for
the format and boundaries.
The reason to use Basalt for agent-owned data is the write boundary: inspect a proposed change before it is durable, apply only the exact reviewed plan, then diff or undo the latest change if needed.
basalt workspace preview --json .basalt-workspace \
"UPDATE issues SET status = 'closed' WHERE id = 42"
# Review the returned plan_id, then:
basalt workspace apply --json .basalt-workspace PLAN_ID
# Review the returned change_id, then:
basalt workspace diff --json .basalt-workspace CHANGE_ID
basalt workspace undo --json .basalt-workspace CHANGE_ID
Use SQLite or DuckDB when you need their compatibility or analytical performance. Basalt is for local structured-data work where a bounded, recoverable write matters more than replacing an existing database.
If that describes your workflow, use the early-user validation guide with a disposable, non-sensitive input and record the concrete task and blocker. Basalt does not claim adoption until developers complete this workflow against the tools they already use.
Basalt can run as a local Model Context Protocol server over stdio. Install the binary from this checkout:
cargo install --path . --locked
Then configure an MCP host with an absolute workspace path. Workspace mode is the recommended agent integration: it scopes data access and requires an explicit preview/apply lifecycle for writes.
{
"mcpServers": {
"basalt": {
"command": "basalt",
"args": [
"mcp",
"--workspace",
"/absolute/path/to/project-data",
"--init-workspace"
]
}
}
}
--init-workspace creates the configured workspace only when its path does not
exist; it never replaces an existing directory or manifest. Omit it when the
workspace must be provisioned separately. Add "--allow-writes" only when the
host has an explicit operator approval policy for applying workspace plans and
undoing changes. Direct database mode is still available with "args": ["mcp", "/absolute/path/to/app.basalt"], but it is read-only by default; execute and
checkpoint require the same flag. Use "args": ["mcp", ":memory:"] for an
ephemeral direct-mode session. The installed binary is preferred for host
configuration; running from a checkout is also possible with cargo run --quiet -- mcp --workspace /absolute/path/to/project-data.
When a modern MCP host advertises form elicitation, Basalt returns an
input_required approval request before each workspace import, apply, or undo
and executes only after the host retries with an explicit approval. Legacy
initialized hosts receive elicitation/create; hosts that do not advertise
elicitation use the explicit --allow-writes startup policy.
The release metadata carries the visible Cargo ownership marker used by the MCP Registry listing:
Workspace mode exposes workspace_import, workspace_inspect,
workspace_preview, workspace_plan, workspace_apply,
workspace_history, workspace_diff, workspace_undo, and
workspace_export, alongside bounded query, list_tables, and
describe_table tools. It also exposes the current schema at
basalt://schema. See docs/mcp.md for the complete tool
contract, configuration details, approval boundary, and troubleshooting.
Execute a SQL file:
basalt --file schema-and-seed.sql app.basalt
Run commands in order on one connection, including a transaction spanning multiple commands:
basalt --command "BEGIN;" --command "INSERT INTO users VALUES (2, 'Grace');" --command "COMMIT;" app.basalt
Use --file - to read SQL from stdin. Repeat --command and --file as
needed; they execute in the order they appear. Table output is human-readable,
CSV emits query rows, and --json emits one JSON object per statement. Run
.help inside the shell for .tables, .schema, .mode, .headers,
.checkpoint, .show, and .clear. Each CLI SQL action and the pending
interactive buffer is limited to 16 MiB; larger scripts should be split into
smaller actions or use the bounded workspace import formats.
use basalt::{Database, db::StatementResult};
let database = Database::open("example.basalt")?;
database.execute_sql(
"CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT NOT NULL); INSERT INTO users VALUES (1, 'Ada');",
)?;
let result = database.execute_sql("SELECT * FROM users WHERE id = 1")?;
assert!(matches!(result[0], StatementResult::Select { .. }));
database.checkpoint()?;
# Ok::<(), basalt::db::DbError>(())
Use database.connect() when SQL transaction statements need to span multiple
calls.
cargo fmt --all -- --check
cargo check --all-targets --locked
cargo clippy --all-targets --all-features --locked -- -D warnings
cargo test --all-targets --locked
RUSTDOCFLAGS="-D warnings" cargo doc --no-deps --locked
cargo bench --bench throughput
cargo package --locked
cargo build --release --locked
cargo audit
python3 scripts/benchmark_workspace.py --basalt target/release/basalt
For the complete Unix release preflight, use:
bash scripts/release-check.sh
It installs the exact packaged crate into a temporary prefix and runs the
installed-binary smoke journey. It also runs cargo audit and dist plan
when those tools are available.
See CONTRIBUTING.md for contribution guidelines and CHANGELOG.md for project history. The release checklist is in docs/release.md, including the generated release workflow and clean-binary smoke test.
MIT. See LICENSE.
Local SQL workspaces with bounded, recoverable writes for coding agents.
{ "mcpServers": { "io.github.joshiii-xyz-basalt": { "command": "cargo", "args": [ "basalt-db" ] } }}เครื่องมือ
ยังไม่มีรายการเครื่องมือ เซิร์ฟเวอร์แบบรีโมตจะได้รายการหลังการตรวจสอบสถานะครั้งแรก
FAQ
คัดลอกคอนฟิก stdio สำหรับ Cursor, Claude Desktop, Claude Code หรือ VS Code ได้ในหน้านี้ คอนฟิกนี้ใช้การติดตั้งของผู้เผยแพร่ ไม่ใช่พร็อกซีของ PlugMCP
ระเบียนนี้ไม่ได้ระบุตัวแปรสภาพแวดล้อมที่จำเป็น
Basalt ทำงานแบบโลคัลผ่าน stdio
ตรวจสอบล่าสุดเมื่อ 2026-11-09 Local SQL workspaces with bounded, recoverable writes for coding agents.