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Sync MCP surface to SPEC §7 process model

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Rename list_children/read_output/kill/send_message_to to their SPEC §7
process_id-shaped names; drop report_to_parent (direction inferred by
send_message) and policy_check (replaced by per-project trust gating).
Add the SPEC's missing tools: start_process, restart_process,
close_process, rename_process, select_process, get_process_status,
get_project_status, get_process_raw_output, search_output,
get_process_ports, whoami, help.

Process model now distinguishes agent/terminal/command kinds with
opaque p_<6hex> IDs. Command entries are session-persistent so they
survive PTY exit and can be Restart'd. Status enum gains starting and
stopped. screen_version, port detection, and bracketed-paste send_input
land alongside.

Trust gating (internal/trust) replaces the regex policy: command-preset
spawns return needs_trust on first use; the user confirms in a
status-line modal and the grant persists to
\$XDG_DATA_HOME/patterm/projects/<key>/trust.json.

Tests cover send_message direction inference (parent↔child, sibling
rejection, nil caller paths) and trust grant persistence across reopen.
This commit is contained in:
Harry Bayliss
2026-05-14 14:29:45 +01:00
parent 2852c48e60
commit 55c6c93086
14 changed files with 2316 additions and 664 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
internal/scratchpad/scratchpad.go
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@@ -90,9 +90,21 @@ func (s *Store) Read(name string) (content string, revision string, err error) {
return string(b), revisionOf(b), nil
}
// RevisionMismatchError is returned by Write when expectedRevision
// doesn't match the on-disk revision. The MCP scratchpad_write tool
// surfaces CurrentRevision as `current_revision` in the response so
// the caller can re-read and merge (SPEC §7 / §14).
type RevisionMismatchError struct {
CurrentRevision string
}
func (e *RevisionMismatchError) Error() string {
return "scratchpad: revision mismatch (current=" + e.CurrentRevision + ")"
}
// Write replaces the file's contents. expectedRevision, if non-empty,
// must match the current revision or the write is rejected (SPEC §14
// last-write-wins-with-token).
// must match the current revision or the write is rejected with a
// *RevisionMismatchError (SPEC §14 last-write-wins-with-token).
func (s *Store) Write(name, content, expectedRevision string) (string, error) {
p, err := s.safePath(name)
if err != nil {
@@ -100,8 +112,9 @@ func (s *Store) Write(name, content, expectedRevision string) (string, error) {
}
if expectedRevision != "" {
if cur, err := os.ReadFile(p); err == nil {
if revisionOf(cur) != expectedRevision {
return "", fmt.Errorf("scratchpad: revision mismatch")
curRev := revisionOf(cur)
if curRev != expectedRevision {
return "", &RevisionMismatchError{CurrentRevision: curRev}
}
}
}