Pre-release

This release is a pre-release and may not be stable for production use.

yadgar — the client

One binary. yadgar login obtains a credential, yadgar serve is the MCP server your agent spawns, and everything else manages the machine it runs on (D75, D76).

Decisions are recorded in yadgarhq/docs — D75 (the proxy that knows no tools), D76 (one binary, and a rules file that is referenced rather than spliced), D72 (the credential), D16 (why the gateway is the only thing that speaks MCP inward).

What it is

A proxy, and deliberately nothing more. tools/list is forwarded to the gateway and its answer returned verbatim; so is tools/call. There is no per-tool code in this repository at all — not a match arm, not a registry, not a feature flag.

That is the boundary rather than an economy. A list the client asserts is a list the client is trusted to filter honestly; forwarding makes the gateway's answer the only answer, and the gateway resolves identity before it replies. It is also what keeps releases uncoupled: this binary lives on people's laptops and the gateway does not, so a client that enumerated tools would make the tool set move at the speed of the slowest machine.

When the gateway is unreachable at spawn, the last tool list is served from cache and calls fail with a plain "gateway unreachable" — because an empty list is indistinguishable from yadgar not being installed, and the agent would silently lose memory and tasks with nothing to report.

Commands

Command What it does
yadgar login Asks for the gateway address and your credentials once, stores both together, and registers the MCP server in the agent client's user-level config — once per machine, never per repository.
yadgar serve The stdio MCP server the agent spawns. Not run by hand.
yadgar install Hooks, the rules reference, the MCP entry, and a health check.
yadgar uninstall Removes what install added, and nothing else.
yadgar verify Reports drift in the installed environment. Scheduled, not remembered — the daemon cannot see ~/.claude/settings.json, so nothing server-side can ever notice.
yadgar hook <event> What settings.json invokes. A hook is a dispatch, not a program.

login is the whole setup. project_id is derived from the working directory at call time (D53), so one registration serves every repository and a fresh checkout works immediately.

Installing

pipx install yadgar
yadgar login

Rust, shipped to PyPI as wheels via maturin. The language follows the rest of the system; the channel follows the people already using it, and pipx install yadgar is not a thing a rewrite gets to take away. A plain GitHub-release binary was rejected for exactly that reason.

The wheel carries the compiled binary and no Python at all — bindings = "bin" in pyproject.toml — so import yadgar is not a thing and is not meant to be.

A wheel is per-platform, so there are six: Linux, macOS and Windows, each on x86_64 and aarch64. Every one is built on a runner of its own architecture rather than cross-compiled, and release.yaml refuses to publish unless all six are present — shipping the four that built would leave two platforms silently installing an older version.

Development

cargo build
cargo test
pre-commit run --all-files

There is no Containerfile and no chart here: this repository is not a service, and what it ships is a wheel. CI is the shared workflow in yadgarhq/actions, which detects that and skips the image, chart and proto stages (D62).

To build a wheel locally:

maturin build --release   # → target/wheels/, for THIS machine only

The other five targets are built by .github/workflows/release.yaml, which is this repository's one piece of local CI. The reason it is not in yadgarhq/actions with everything else is written at the top of that file.

Project links

Data verified by PyPI on Aug 31, 2026
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Key dates

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  • Released:
Newer release available (0.1.0a7)

1 maintainer

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Avatar for maxagahi from gravatar.com maxagahi

GitHub Statistics

Data verified by PyPI on Aug 31, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

Apache-2.0
View SPDX License List

Requires

Python >=3.9

Tags

mcp agent memory yadgar

Classifiers

Report project as malware

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