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Commits
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55dcb48299 |
fix(telegram): resolve send_attachment paths in the user's workspace
Nightly Build / build (push) Successful in 8m6s
`send_attachment` handed its `file_path` argument straight to `InputFile::file`, which resolves against the **server process's** working directory. Every path the model can actually have — relative to the user's home, or absolute inside their container — failed the `path.exists()` check, and the one class that didn't (a name that happens to exist next to the binary) would have sent the wrong file. The routing already exists for the fs-tools, so expose it rather than repeat it: `UserFilesApi` (core-api) reads a path in the agent's own vocabulary and is obtained from `UserChannelHandle::files()`, so it is scoped to one user by construction. skald-core implements it over `resolve_view_target` — host mount read directly, container-only path through `docker exec` — holding the `SharedFs` cell rather than a snapshot, so a remount lands without a login. The size cap is checked before the read (a new `exec_fs::size` for the container branch): the point of a cap is to keep an oversized file out of RAM, so checking it afterwards would protect nothing. A photo above `sendPhoto`'s narrower 10 MB ceiling goes out as a document instead of as an API error. |
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5765941758 |
feat(prompt): tell the agent what its sandbox can run
Nightly Build / build (push) Successful in 8m6s
The agent had no way to know its container ships ffmpeg, ripgrep or tesseract, so it either declined work it could do or spent a round finding out. This adds a command list to the system prompt as a **discovery hint** — explicitly not an inventory. Every decision follows from it being a hint: - The allowlist (~35 entries, `container/commands.rs`) is the curation; a full PATH dump is 800 entries of coreutils noise. The probe exists so the list cannot *lie*, not so it can discover: `command -v` at login means we never announce something a container recreate threw away. - The rendered prose says the list is partial and names `command -v`, so a tool outside the allowlist costs one check rather than a wrong conclusion. An empty probe renders as an explicit "could not be read", never as silence under a heading promising a list. - Order is the allowlist's own, grouped by kind of work — the grouping is the curation, and the reader is a model, not a grep. - Staleness is cheap both ways, so there is no invalidation machinery: a login-time snapshot on `UserContext`, non-fatal, refreshed at next login. The gate is the tool, not the sentinel. Every AGENT.md carries `common/sandbox.md` — the four system agents included — and the section is emitted iff the turn's model is shown `execute_cmd`, derived from `allow_tools` plus the security group's visibility filter for a root turn and from `child_defs` for a sub-agent: always the same definitions the model will see. `has_execute_cmd` therefore joins the PrefixCache key, since the group is switchable mid-conversation and that switch already rewrites the tool payload in the same provider cache. The fragment holds only the heading and one stable sentence; every conditional claim lives in the renderer, because prose promising `sudo apt-get install` is not the renderer's to retract when the tool is absent. `execute_cmd`'s own description loses `(python + node available)`: its job is steering away from the shell, and a capability advertisement diluted it. |
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6cb4ea0ce8 |
feat: let the fs-tools reach the whole container, and stop rebuilding the system prefix every round
Nightly Build / build (push) Successful in 7m33s
Two changes to what a turn costs and what it can see.
## The system prefix is frozen per conversation
`AgentSystemContext::system_context` is called once per round and reassembled
`base` from disk and SQLite each time, so an agent writing `user-memory/index.md`
in round 3 turned round 4 — seconds later, with the provider cache certainly
warm — into a full miss. `base` is the head of every provider's cache key, so it
is the most expensive string in the request to touch.
`PrefixCache` builds it once per (conversation, agent) and holds it on
`UserLoopRuntime`. The refresh rule is the only free one: rebuild once the
conversation has been idle longer than a provider's cache could survive
(20 min). The clock is idle time of the conversation, not time since a file
changed, and reading restarts it — every get is a request about to go out.
Writes are deliberately not reacted to. The agent's own edits are already in the
context, two messages downstream. A write from elsewhere is invisible until the
TTL: that is precisely where an immediate rebuild costs the most, and the
cheaper freshness path already exists — a `read_file` result appends, and
appending invalidates nothing. The injection header now says so.
Also removes 4 DB queries and 2 file reads per round.
## The security boundary is the container, not the mounted subtree
`read_file /tmp/cv.txt` answered "path escapes your workspace" and the agent
re-read the file with `cat`. It was right to refuse — /tmp exists only inside
the container — but the refusal protected nothing: `execute_cmd` already runs
there with passwordless sudo. The mount is the fast path, not the perimeter.
`resolve_target` now routes an absolute path through `container_to_agent`
first. Landing on a mount takes the host path, which also fixes a real bug:
`/root/x` IS `~/x`, yet every tool rejected it, because `PathBuf::join` with an
absolute tail discards the base and the result then failed the prefix check
(`/root/shared/{X}/…` too). Landing nowhere means container-only, served by the
new `container::exec_fs` over `docker exec`, with paths passed positionally so
a path containing `$(…)` stays data. Membership still holds: `/root/shared/{X}`
for a non-member fails exactly as `shared/{X}` does.
Single-file tools get this without a second implementation: `fs::Shuttle` pulls
the file out, runs the unchanged tool on the copy, and pushes it back if the
bytes changed. `list_files` lists in place, `read_file` reads container paths as
text (a shuttled copy cannot back a MediaRef), and `grep_files` refuses them
with a pointer to `rg` rather than approximating its own semantics. The viewer
follows the same routing, so the user can open what the agent read.
Host containment is untouched and still guards every mounted path — it is the
defence against a symlink planted in the container pointing at the host's /etc,
and the container branch never touches the host filesystem at all.
Verified end-to-end against a live skald-runtime:v3 container: write/read/edit
on /tmp round-trip, /etc/os-release reads, binary and shell-metacharacter paths
survive, and /root/notes.md lands in the host home.
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