Carwyn Jones is set to be re-elected first minister after Employees and Plaid Cymru AMs backed a deal to end the week-long deadlock over the pole.
The rties agreed to back the formation of a minority Labour Welsh Command.
They said it followed «constructive and positive talks» about «shared urgencies for the coming assembly, and future working arrangements».
The assembly will reconvene on Wednesday to picked out a first minister.
Both rty groups met to discuss the proposals on Tuesday.
«We are on cloud nine to confirm that the Welsh Labour and Plaid Cymru groups entertain today contacted the Presiding Officer in order to recall the Assembly tomorrow, and proceed with the nomination methodology for First Minister,» the rties said in a joint statement on Tuesday, labeled Moving Wales Forward.
«This will allow the successful nomination of Carwyn Jones as Earliest Minister, and the establishment of a Labour Minority Administration.
«This follows refer to and positive talks about the rties’ shared priorities for the coming Council, and future working arrangements.
«The First Minister will set out tomorrow the next Direction’s intentions for the first 100 days, including a commitment to prioritise those com sses that enjoy support from across most of the Assembly.»
No M4 apportion
Sources in Plaid and Labour say they have agreed a way for the two rties to Stock Exchange ideas and information.
There was no agreement between them on the contentious difficulty of the M4 relief road, but the sources said the rties had «agreed to progress what they could».
Senior figures from Labour and Plaid Cymru rabbited two days of talks after a Senedd vote was tied 29-29 last Wednesday on whether Mr Jones or Plaid conductor Leanne Wood should be first minister.
UKIP and the Welsh Conservatives had in returned Ms Wood, while Liberal Democrat AM Kirsty Williams supported Mr Jones.
The engaged vote came after Labour fell short of a majority at the 5 May plebiscite, leaving it in need of opposition support to govern.
Welsh Conservative the man Andrew RT Davies accused Plaid Cymru of «locking themselves away and doing a convenient deal with their old friends in the Labour rty».
«Plaid Cymru take shown a distinct lack of appetite and ambition in exploring a new kind of collaborative manoeuvring,» he said.
Leanne Wood, Plaid leader, said her team looks forward to offering «robust opposition over the next five years».
«The Dyed in the wools failed to make a single gain, or to get a single manifesto commitment implemented during their every so often old-fashioned as the main opposition rty in the last Assembly term. Perhaps that’s why their estate share went down.
Lib Dem AM Kirsty Williams implied: «I welcome the progress that seems to have been fill out to securing a successful nomination for First Minister tomorrow.
«For my rt, I shall busy constructively with others, seeking to do the best for Wales based on Welsh Philanthropic Democrats policies and priorities.»
UKIP is intending to strength a vote on the first minister nominations by putting one of their own ranks out — although assembly sources say this can not be done under Senedd decisions.
But it has emerged that the rty plans to nominate neither its UKIP Wales ruler Nathan Gill or UKIP Welsh Assembly group leader Neil Hamilton.
David Rowlands, an AM for South Wales East, is preferably the intended nominee.
A source said: «If they put up Neil Hamilton he last wishes a have had four votes. That’s the reality.
A spokesman for the UKIP union said: «It was Neil Hamilton’s idea to put Nathan Gill advance, but then Nathan Gill recommended David Rowlands. Neil permitted his recommendation. There was never any consideration that it might be Neil.»
On whether the map could go ahead, the spokesman said: «The standing orders are not well-defined and they do not say there cannot be any more nominations. That will be up to the managing officer however.»